Câu hỏi: Foreign students who are doing a decision about which school to attend may not know exactly where the choices are located

A. are doing

B. about which

C. to attend

D. the choices

Câu 1: The director, as well as his wife and two children, were injured in the accident.

A. the

B. well

C. were

D. in

Câu 2: Optimists believe that in future we will be living in a cleaner environment, breathing fresher air and eat healthier food.

A. Optimists believe

B. in future

C. living in a cleaner

D. eat healthier food

Câu 3: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 4: He passed the exams with high scores, that made his parents happy.

A. passed

B. with

C. that 

D. happy

Câu 5: It is important that you turned off the heater every morning before you leave for class.

A. turned off

B. before

C. important

D. leave for

Câu 6: If I had studied carefully, I wouldn't made so many mistakes.

A. I had

B. carefully

C. made

D. so many