问题

What the teacher said at the meeting_______very helpful to us.

A:where
B:but which
C:whether whether
D:turned up

正确答案是：

同类题型

The students entered the classroom，smiling and________，and ______ down to have their lessons.

It____Jim because he left here a moment ago

Where is Lucy I can’t find her now. She ________ Shanghai on business.–She ________ back in three days.

John isn’t happy today. Let’s go and ____.—Good idea.

Don’t you know that the scientist for two years