I’m not sure_______.
| A．that has he been to Hong Kong |
| B．if has he been to Hong Kong |
| C．if he has been to Hong Kong or not |
| D．whether he has been to Hong Kong or not |
— I’m sorry I _______ my English book at home.
— That’s all right. Don’t forget to bring it next time.
| A．forget | B．left | C．have forgotten | D．had left |
— Do you know the people _______ came to the party yesterday?
— No, I know none of them.
| A．who | B．whose | C．whom | D．which |
— Does Tommy love taking exercise every day?
— Yes. He goes jogging every day _______ it rains or snows heavily.
| A．when | B．as | C．unless | D．if |
— It’s difficult for the village children to cross the river for school.
— I hear a new bridge _______ over the river in a year.
| A．was built | B．is being built | C．has been built | D．will be built |
— I think the man over there must be Bob.
— It _______ be him. He has gone to England.
| A．can’t | B．mustn’t | C．couldn’t | D．shouldn’t |