______ is a good idea to improve our English by singing English songs.
A. This B. That C. It
--- Look at ______ book on the desk . Is it ______ useful one ?
---Yes, it is . In the book there is much advice on how to learn math well.
| A．a, the | B．the, a | C．the, an | D．a, an |
---It seems that the kid is good at singing Beijing Opera.
--- __________.
| A．All right | B．That’s all right |
| C．You are right | D．You’re welcome |
The doctor ____ the crying baby but couldn’t find out what was wrong with it.
| A．looked after | B．looked over | C．looked for | D．looked out |
---Must I hand in my exercise book now, Mr. Zhao?
---No, you ______. You may give it to me tomorrow.
| A．mustn’t | B．can’t | C．needn’t | D．don’t |
Vera had to go to see her dentist ,for there was something wrong her ______.
A. tooth B. arms D. hair D. feet