My mother was doing the cleaning in the sitting room ________ the telephone rang.
| A．when | B．while | C．since | D．as soon as |
During the charity walk, people have to walk_____ country parks and_____ hills and mountains.
| A．over, through | B．through, on |
| C．through, over | D．in, on |
All the children should be helped when they are ______. They should also be treated with ______.
| A．sickness; kind | B．sick; kindness |
| C．sickness; kindness | D．sick; kind |
The old man is ______ weak ______ say any words.
| A．too; to | B．so; that | C．very; that | D．so; to |
We should try our best _______ poor children _______ clean water and food.
| A．to provide; with | B．to provide; to |
| C．provide; to | D．provide; with |
You’d better go out for a walk instead of _______ in your bed.
| A．lying | B．lie | C．to lie | D．lay |