Câu hỏi: The creation of nature reserves will help to ensure the _____ of many endangered species. 

A. survive

B. survival

C. survivor

D. survivable

Câu 1: He knew it was time to lose some weight. 

A. He had lost some weight.

B. He went on a diet to lose his weight.

C. He realized that he should lose some weight. 

D. He must have lost some weight.

Câu 2: Because they erected a barn, the cattle couldn't get out into the wheat field. 

A. In order not to keep the cattle away from the wheat field, they erected a barn

B. They erected a barn in case the cattle couldn't get out into the wheat field.

C. They erected a barn so that the cattle would get in to the wheat field. 

D. They erected a barn, and as a result, the cattle couldn't get out into the wheat field. 

Câu 3: They couldn't climb up the mountain because of the storm. 

A. The storm prevented them from climbing up the mountain. 

B. The storm helped them to climb up the mountain. 

C. The storm made it not capable of climbing up the mountain. 

D. They kept on climbing up the mountain inspite of the storm.

Câu 4: He last had his blood tested ten months ago. 

A. He had his blood tested every ten months.

B. He has had his blood tested for ten months.

C. He hasn't had his blood tested for ten months. 

D. He didn't have any tests on his blood in ten months.

Câu 5: Recent             advances such as the internet are proving very useful for conservationists.

A. technology

B. technological

C. technologically

D. technologist

Câu 6: The council intends to raise awareness of the effects of traffic pollution on our          

A. health 

B. healthy

C. unhealthy

D. healthful