— Are you sure you have to ? It’s been very late.
— I don’t know __________ I can do it if not now.
| A．where | B．why | C．how | D．When |
The students stopped talking_________the teacher came into the classroom.
| A．when | B．until | C．and | D．so |
---- What would you like, rice or noodles?
---- __________. Some bread, please. I am in a hurry now.
| A．Either | B．Both | C．None | D．Neither |
--- What do you think of the documentary A Bite of China Ⅱ?
--- _________. It has attracted plenty of TV audience.
| A．Enjoy yourself | B．Many thanks |
| C．Really good | D．It’s hard to say. |
It’s silly ___________ him to be crazy __________ such a dishonest woman.
| A．for; about | B．for; with |
| C．of; about | D．of; with |
--- How many girls are there in your class?
--- ________ them __________ over twenty.
| A．A number of, are | B．The number of, are |
| C．A number of, is | D．The number of, is |