---Where is your sister? ---She housework at home.
| A．does | B．do | C．did | D．is doing |
下面哪个短语用于讲故事的开头比较合适？
| A．Once or twice | B．From time to time |
| C．Once upon a time | D．For the first time |
You will have a better chance _____ passing your exams if you work harder.
| A．of | B．at | C．in | D．To |
— Where is your father now?
— I’m not sure. He be in the kitchen.
| A．must | B．may | C．can | D．need |
It’s difficult to live in a foreign country, if you can’t speak foreign languages.
| A．mainly | B．really |
| C．luckily | D．especially |
—Can you finish the work in an hour?
—____________.
| A．No problem | B．That’s all right |
| C．We don’t believe it | D．Good idea |