Who is _____ swimming, you or she?
| A．better at | B．better in | C．good at | D．good in |
The workers in the Huashan Mountains have to ______rubbish to keep the mountains clean.
| A．turn up | B．pick up | C．mix up | D．give up |
— Whose shoes are these?
— They ____ be Mike’s. They are much too large for him.
| A．might | B．may | C．mustn’t | D．can’t |
The little child was too _______ to hear the end of the long speech.
| A．sleepy | B．asleep | C．sleep | D．sleeping |
We should learn_______ each other.
| A．to | B．from | C．for | D．of |
Attention , please! All the mobile phones _________during the meeting.
| A．must keep off | B．have kept off | C．are keeping off | D．must be kept off |