Task 2. Error Identification
Knowledge about farming and tools (A) have made (B) our work (C) easier and (D) more productive.
A.have 
B.our
C.easier 
D.more productive

Task 2. Error Identification
(A) According to the Canadian Pulp and Paper Association, Canada (B) supplies 34% of the (C) world’s wood pulp and 49% of (D) it newsprint paper.
A.According 
B.supplies 
C.world’s 
D.it

Task 2. Error Identification
Some people (A) are concerned that (B) burning garbage may (C) make harm (D) to the environment.
A.are concerned
B.burning 
C.make
D.to

Task 1. Choose the best answer.
Humans suffer a lot of from natural disasters because ____.
A.of the fact that their serious destruction of the environment
B.their serious destruction of the environment
C.of they have seriously destroyed the environment
D.they have seriously destroyed the environment

Task 1. Choose the best answer.
They caught a taxi ____ they could arrive at the conference on time.
A.so that   
B.so as to      
C.in order to      
D.in case that

Choose the best answer.
___ yet?
A.The building has been painted   
B.Was the building been painted
C.Has the building painted     
D.Has the building been painted

Choose the best answer.
Yesterday grandmother asked me ____.
A.if where her glasses were                  
B.where her glasses were
C.if where were her glasses 
D.where were her glasses

Exercise 9. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.
Born on June 30, 1985 in Baltimore, Maryland, to Fred and Debbie Phelps, the youngest of three children, Michael Phelps and his sisters grew up in the neighbourhood of Rodger Forge. His father, Fred, a former all-rounded athlete, was a state trooper and his mother Debbie was a middle-school principal. When Phelps's parents divorced in 1994, he and his siblings lived with their mother, with whom Michael grew very close. Even at the age of 7, Phelps was still a little scared to put his head under water, so his instructors allowed him to float around on his back. Not surprisingly, despite the fact that later he is very good at butterfly swimming, the first stroke he mastered was not the easily-practised breaststroke but the backstroke.
At the age of 15, Phelps became the youngest American male swimmer to compete at an Olympic Games in 68 years. While he didn't win any medals at the 2000 Summer Olympics in Sydney, Australia, he would soon become a major force in competitive swimming.
In the spring of 2001, Phelps set the world record in the 200-meter butterfly, becoming the youngest male swimmer in history at the age of 15 years and 9 months. At the 2001 World Championships in Japan, he then broke his own record with a time of 1:54:58, earning his first international medal. In 2002, Phelps continued to establish several records including the 100-meter butterfly and the 200-meter individual medley. The following year, at the same event, he broke his own world record in the 400-meter individual medley with a time of 4:09.09.
After the London Olympics in 2012, Phelps announced he was retiring from his sport. However, at the 2016 Olympic Games, he came out of retirement and returned to professional competition. This was also the event which he won one silver and five gold medals, becoming the oldest individual gold medalist in Olympic swimming history, as well as the first swimmer to win four consecutive golds in the same event, the 200-meter individual medley.
Phelps's father used to be a comprehensive ____.
A.principal                 
B.trooper                    
C.athlete                     
D.instructor

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
Peter moved abroad for a fresh start. He regrets it now.
A.If only Peter had moved abroad for a fresh start.
B.Peter wishes he hadn't moved abroad for a fresh start.
C.If Peter moved abroad for a fresh start, he would regret it.
D.Peter regrets not having moved abroad for a fresh start.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.
E-waste is being produced on a scale never seen before. Computers and other electronic equipment become obsolete in just a few years, leaving customers with little choice but to buy newer ones to keep up. Millions of tons of computers, TVs, smartphones, and other equipment are discarded each year. In most countries, all this waste ends up in landfills, where it poisons the environment - e-waste contains many toxic substances such as lead, mercury, and arsenic, that leak into the ground.
Recycling is the ideal solution to the problem. E-waste contains significant amounts of valuable metals like gold and silver that make it attractive to recycle. In theory, recycling gold from old computers is more efficient - and less environmentally destructive - than digging it from the earth. The problem is that a large percentage of e-waste dropped off for recycling in wealthy countries is sold an diverted to the developing world, posing an increasing threat to the health of the people there.
To address the problem of the international trade in e-waste, 170 nations signed the 1989 Basel Convention, an agreement requiring that developed nations notify developing nations of hazardous waste shipments coming into their countries. Then, in 1995 the Basel Convention was modified to ban hazardous waste shipments to poor countries completely. Although the ban hasn't taken effect, the European Union, where recycling infrastructure is well developed, has already written it into their laws. One law holds manufacturers responsible for the sale disposal of electronics they produce.
Companies like Creative Recycling Systems in Florida, the USA, are hoping to profit from clean ewaste recycling. The key to their business is a huge, building-size machine able to separate electronic products into their component materials. As the machine's steel teeth break up e-waste, all the toxic dust is removed from the process. This machine can handle some 70,000 tons of electronics a year. Although this is only a fraction of the total, it wouldn't take many more machines like this to process the entire USA's output of hightech trash.
Unfortunately, under current policies, domestic processing of e-waste is not compulsory, and while shipping waste abroad is ethically questionable, it is still more profitable than processing it safely in the USA. Creative Recycling Systems is hoping that the US government will soon create laws deterring people from sending e-waste overseas.
(Adopted from “Reading Explorer 4” by Paul MacIntyre and Nancy Hubley)
Which of the following can be inferred from the passage?
A.Most countries have made enormous efforts to manage their e-waste exports.
B.Legislative action is fundamental to solving the problem of e-waste effectively.
C.Strict laws against sending e-waste abroad have recently been upheld in Florida.
D.Developing nations benefit more from the trade in e-waste than their developed counterparts.