Câu hỏi: The soliders will do anything to halt the enemies from entering.

A. stop

B. start

C. keep on

D. kill

Câu 1: I take my hat off to all those people who worked hard to get the contract.

A. congratulate

B. unrespect

C. welcome

D. encourage

Câu 2: Adverse weather conditions made it difficult to play the game.

A. good

B. bad

C. comfortable

D. severe

Câu 3: Strongly advocating health foods, Jane doesn’t eat any chocolate.

A. supporting

B. doubt

C. advising

D. denying

Câu 4: Nutritionists believe that vitamins circumvent diseases.

A. defeat

B. nourish

C. help

D. treat

Câu 5: Synthetic products are made from chemicals or artificial substances.

A. natural

B. made by machine

C. man-made 

D. unusual

Câu 6: About 95% of all animals are invertebrates which can live anywhere, but most, like the dtarfish and crab, live in the ocean.

A. with backbones

B. with ribs

C. without ribs

D. without backbones