—I have no idea ____________ tell her the bad news.
—I think tomorrow is the best time.
| A．how to | B．when to | C．how | D．when |
---How many teachers are there in your school?
---I’m not sure about it. Maybe.
| A．hundred | B．hundreds | C．hundreds of | D．one hundred |
--What do you think of Pleasant Goat and Big Big Wolf (《喜洋洋与灰太狼》)？
---It’s very . Many children like watching it.
| A．careful | B．disappointing | C．interesting | D．poor |
Tom thanked his sisterhelping him his lessons.
| A．for; with | B．to; in | C．of; about | D．on; at |
---May I surf the Internet now?
---No,______ you have finished doing the dishes.
| A．unless. | B．if. | C．because. | D．when |
The young man used to _______ to work,but he is used to _______to work now.
| A．drive,walking. | B．drove,walked. | C．drive,walks. | D．driving,walk |