A. chemical B. approach C. achieve D. challenge
 
A. thanked B. belonged C. cooked D. laughed
 
The plan may be ingenious. It will never work in practice.
 
 
 
The man wanted to get some fresh air in the room. He opened the window
 
 
A. enthusiastic B. durability C. civilization D. humanitarian
 
A. economics B. conquerable C. capability D. optimistic
 
The teacher had some exercise…………….at home yesterday so that he can correct them today.
 
The people who……………the survey said that they had examined over 1,000 accidents.
 
 
Air pollution poses a………………..to both human health and our environmen.
 
………………..he was kidnapped by the Iraqui guerrillas yesterday has been confirmed.
 
  
I have no patience with gossips. What I told Bill was a secret. He………………it to you.
 
The teacher always………….that the students make an outline before writing a complete essay.
 
The twins look so much alike that no one can……………them……………
 
 
Western women are more ……………… than Asian women.
 
 
The climate of China is similar in many ways to…………………
 
Unfortunately, the company closed down because it couldn’t keep…………….with rapidly changing technology.
 
 
He was the first person…………….the room.
 
 
Not only……………….the exam but she also got a scholarship.
 
in most countries, compulsory military service does not apply to women.
 
The most important thing is to keep yourself occupied.
 
From an airplane, the grasslands of the western prairie appear almost as uniform as a placid sea.
 
The use of lasers in surgery has become relatively commonplace in recent years.
 
 
He doesn’t study hard, so he can fail the exam.
 
 
 
He talked about nothing except the weather.
 
 
No one has seen Linda since the day of the party.
 
 
It is a good idea to be careful in buying or purchasing magazines from salespersons who may come to your door.
 
A turtle differs from other reptiles in that its body is encased in a protective shell of  their own.
 
The wooden fence surrounded the factory is beginning to fall down because of the rain.
 
I must have a watch since punctuality is imperative in my new job.
 
A chronic lack of sleep may make us irritable and reduces our motivation to work
  
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