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

A. I had

B. carefully

C. made

D. so many

Câu 1: I can’t go out tonight because I have too many work to do.

A. can’t

B. because

C. too many

D. to do

Câu 2: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 3: Mr. Smith, along with her cousins from Canada, are planning to attend the firework display in Da Nang, Vietnam.

A. with

B. her cousins

C. are

D. to attend

Câu 4: She did not know where most of the people in the conference was from.

A. did not

B. where

C. the

D. was

Câu 5: He passed the exams with high scores, that made his parents happy.

A. passed

B. with

C. that 

D. happy

Câu 6: 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