Câu hỏi: When I got to the office, I ----------- that I had forgot to lock the door.

A. realized

B. had realized

C. realize

D. have realized

Câu 1:  How long have you ------------- he was a liar.

A. been knowing

B. knew

C. know

D. known

Câu 2: They ------------ to the theatre twice so far this month.

A. are going

B. go

C. went

D. have been

Câu 3:  I’m sorry. I don’t understand what -----------------.

A. you say

B. you're saying

C. you will say

D. you would say

Câu 4: He ----------

A. will be here soon

B. will here be soon

C. will be soon here

D.  be soon will here

Câu 5: As the sun ------------ I decided to go out.

A. shines

B. has shone

C. shine

D. was shining

Câu 6: “What a lovely boat!” “I ……………half a year building this boat.”

A. spend

B. spent

C. spending

D. have spent