— Could I use your mobile phone, Tim?
— Of course you can, but you ________ use it in the reading room.
| A．must | B．mustn’t | C．can | D．couldn’t |
The policeman asked the little boy______
A. where did he live
B. where he lived
C. where he lives
I’m afraid to______ with anyone.
A. make friend
B. make friends
C. makes friend
The teachers provided the students ________ books.
A. with B. for C. To
Why not _________?
A. encouraging her to study hard
B. to encourage her to study hard
C. encourage her to study hard
You had better not _______.
A. to play games B. play games C. plays games