--- _______ did you visit the History Museum? --- A week ago.
A.What B. Where C. When
We can use QQ to talk with each other online.
--Good! Will you please show me ______it?
| A．what to use | B．how to use | C．when to use | D．where to use |
My mother often spends 2 hours ______ housework every day.
| A．do | B．does | C．doing | D．to do |
— Must I come at four o’clock?
— Oh, no, you ____.
| A．don’t | B．mustn’t | C．don’t have to | D．can’t |
It’s too cold .You had better ______your coat.
| A．don’t take off | B．not take off | C．don’t put on | D．not put on |
-Would you mind ____ the window ?
-Of course not.I feel hot,too.
| A．not open | B．not opening. | C．opening | D．to open |