Câu hỏi:  “Why is Bill unhappy?” “Because his birds ----------- away”

A. flew

B. fly

C. had flown

D. have flown

Câu 1: “What are you looking for?” “I can’t remember where I --------- my glasses.”

A. leave

B. left

C. had left

D. was left

Câu 2: “I took an exam this morning. It was really hard.” “ ------------- a lot before you took it?"

A. Have you studied

B. Did you study

C. Have you study

D. Do you study

Câu 3:  I’m hot because I ------------- for hours.

A. have run

B. have been running

C. ran

D. am running

Câu 4:  I’m thirsty. May I have something -------- to drink?

A. cold

B. coldness

C. coldest

D. coldly

Câu 5: When you --------- your work, you may leave the room.

A. will finish

B.  finishing

C.  finished

D. had finished

Câu 6: I haven’t heard from my son ------------

A. for several weeks

B. for several weeks ago

C. since several weeks before

D. since a long time