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.
The burglar might come back. You'd better change all the locks.




A.If you don't change all the locks, the burglar could come back.
B.You'd better change all the locks or the burglar will come back.
C.The burglar will come back unless you change all the locks.
D.You'd better change all the locks in case the burglar comes back.

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
You should take regular exercises instead of sitting in front of the television all day.




A.Taking regular exercises is better than sitting in front of the television all day.
B.Sitting in front of the television all day helps you take regular exercises.
C.Sitting in front of the television all day and taking exercises are advisable.
D.Don't take regular exercises, just sit in front of the television all day.

A knee injury forced her to withdraw from the competition.




A.reduce
B.want
C.need
D.advance

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
I decided to go to the library as soon as I ______.




A.would finish what I did
B.finish what I did
C.finished what I did
D.finished what I was doing

The word coordinated is closest in meaning to __________ .




A.organized
B.separated
C.deconstructed
D.transformed

How do optical fibers carry voice message?




A.By sending coordinated electrical pulses through optical fibers
B.By using cathode-ray tube devices.
C.By converting electrical signals to light pulses
D.By fusing bundles of fiberscopes into a faceplate

The word “practice” is closest in meaning to_________




A.deed
B.drill
C.belief
D.exercise

What does it mean “Customers can vote with their wallets”?




A.they can choose the cheapest products
B.they can ask people to choose products with less packaging
C.they can tell the producers which products are good for environment by buying them.
D.they can cast a lot to praise a producer.

According to the passage, why didn't businesses use crowdsourcing in the past?




A.It was too hard to collect and check lots of people's ideas.
B.People weren't as smart as they are today.
C.It was usually illegal in most countries to do this.
D.No one had ever thought of the idea of crowdsourcing before.

A.comprehend
B.individual
C.unexpected
D.spectacle