As a paradise for shoppers, most stores in Hong Kong are _____ even on Christmas Day.
| A．open | B．opened | C．closed | D．closing |
--- Would you like _____ camp with me?
--- I’d like to. But I am busy ______ my homework.
| A．to go; to do | B．to go; doing |
| C．going; to do | D．going; doing |
--- Lin Tao, can I use your English dictionary?
--- Sure. But you _______ return it before the class.
| A．must | B．can |
| C．may | D．would |
--- What do you think of pollution of the big factory?
--- It’s a serious problem. We should _____ all the people to do something for it.
| A．put up | B．call up |
| C．set up | D．give up |
There is little water in your cup, ________?
| A．isn’t it | B．is it |
| C．isn’t there | D．is there |
--- What are you doing here, Mrs. White?
---I'm waiting for my son. He________ back from school.
| A．hasn't come | B．won't come |
| C．doesn't come | D．didn’t come |