Câu hỏi: Chemical engineering is based in the principles of physics, chemistry, and mathematics.

A. in

B. principles

C. chemistry

D. mathematics

Câu 1: The teacher asked him why hadn’t he done his homework, but he said nothing.

A. why

B. hadn’t he done

C. but

D. said nothing

Câu 2: Once you have finished an article and identified its main ideas, it may not be necessary to reread it again.

A. indentified

B. be necessary

C. Once

D. again

Câu 3: The shopkeeper warned the boys don't learn their bicycles against his windows.

A. the

B. don’t

C. their

D. against

Câu 4: Her weigh has increased remarkably since she began receiving treatment.

A. Her

B. weigh

C. remarkably

D. receiving

Câu 5: Upon reaching the destination, a number of personnel is expected to change their reservations and proceed to Hawaii.

A. reaching

B. is

C. to change

D. proceed to

Câu 6: He is the second person be killed in that way.

A. is

B. the

C. be killed

D. way