Câu hỏi: No one knew precisely what would happen to a human being in space

A. casually

B. flexibly

C. wrongly

D. informally

Câu 1: Synthetic products are made from chemicals or artificial substances.

A. natural

B. made by machine

C. man-made 

D. unusual

Câu 2: They need to empty stocks.

A. remake

B. replenish

C. refill

D. repeat

Câu 3: Nutritionists believe that vitamins circumvent diseases.

A. defeat

B. nourish

C. help

D. treat

Câu 4: 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 5: The couple tried to converse in the busy restaurant, but they couldn't hear themselves speak so they went elsewhere.

A. talk

B. stop talking

C. chat

D. communicate

Câu 6: I am afraid I haven’t allowed him enough initiative, said Father Payne, that’s a bad habit of mine.

A. determination

B. encouragement

C. beginning

D. cowardice