问题

While the alien ________ the museum, the boy called the TV station.

A:visiting
B:was visiting
C:visited
D:visit ;

正确答案是：

同类题型

下列选项中加横线词语的用法全都相同的一项是（）

Do you mind me smoking here— _________. Look at the sign. It says, “No smoking”.

Mind your steps as you go, or you’llfall down on to the wet ground. —_____________. Don’t mention it B

What a pity! ________joined in the party, I would have met my old friend．

The mother opened the door quietly so asnot to ______ the sleeping baby.