Is that your best friend Kitty?
— No, it _________ be her. She flew to Singapore yesterday.
| A．must | B．can | C．Mustn’t | D．Can’t |
---Excuse me, Sir .But smoking is not allowed here.
-----Sorry,I didn’t see the sign.I’ll __________ my cigarette at once.
| A．put out | B．put away | C．put up | D．put off |
—Would you mind my sitting here, Sir?
—_________. It’s for my wife.
| A．Not at all | B．Certainly not |
| C．I’m afraid you can’t | D．All right |
I_______ my homework when the door bell__________.
| A．did, rang | B．was doing, was ringing |
| C．did, was ring | D．was doing, rang |
What are you busy doing, Sandy?
—— I’m making some flash cards _________ me remember English words.
| A．help | B．to help | C．helping | D．helped |