Câu hỏi: The telephone rang several times and then stop before I could answer it.

A. times

B. then

C. stop

D. could

Câu 1: 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 2: Chemical engineering is based in the principles of physics, chemistry, and mathematics.

A. in

B. principles

C. chemistry

D. mathematics

Câu 3: 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 4: One of the best ways to encourage your children to read are to provide interesting titles for them to enjoy.

A. the best

B. to read

C. are

D. for

Câu 5: He is the second person be killed in that way.

A. is

B. the

C. be killed

D. way

Câu 6: English is speaking in many countries in the world.

A. English

B. speaking

C. many countries

D. the world