1. We had to call an ambulance because of a ______ person.

A. injured( vì trước person là danh từ nên dùng tính từ )

B. injure

C. injuring

D. injury

2. It's _______ to believe that he passed the exam.

A. hard

B. hardly

C. difficultly

D. difficult( cấu trúc It's + adj + to V)

3. I didn't hear you ______in. You must have been very quiet.

A. came

B. come( hear + O + V)

C. to come

D. had come

4.Do you know how ................fire without using the matches?

A. make

B. to make( how + to +V)

C. making

D. makes

5.Lien wanted .........................a letter to her friend in France.

A. sending

B. sends

C. to send( want + to + V)

D. sent

1,A

2,D

3,B

4,B

5,C