There’s somebody behind us. I think we are _________.
A. being followed
B. are followed
C. follow
D. following
Chọn đáp án A
Those letters _________ now. You can do the typing later.
D . needn't typing
Over 1500 new houses _______ each year. Last year, 1720 new houses _______.
“Ms Jones, please type those letters before noon” “They’ve already _____, sir. They’re on your desk.”