______ he got ready to leave home, his parents came to his home.
| A．While | B．As | C．Until | D．If |
It's cold outside. You'd better your coat and scarf.
| A．work out | B．put out | C．have on | D．put on |
— Must we wear our school uniform this afternoon?
— No, you. All of us will go on an outing.
| A．mustn't | B．can't | C．needn't | D．couldn't |
On the way the mountain village, we found the local houses different from ours.
| A．to | B．by | C．at | D．on |
—can we find your brother at weekends?
— On the football field。
| A．When | B．Which | C．Why | D．Where |
___________nice the ice cream looks! I can't wait to taste it.
| A．How a | B．How | C．What a | D．What |