问题

The light in Bill’s office is still on. I wonder ______.–Maybe at midnight again.

A:if will he stop working
B:why he works so hard
C:how long will he work
D:when he will stop working;

正确答案是：

同类题型

Jack, go and get some chalk, ___?

下列各句中，没有语病的一句是

7．You should try to_____new circumstances as quickly as you can

Is _______ three hours _______ the poor boy to come to school on foot?

当你向别人打听某事时，你应该说：________。