问题

Where have you been all these days? We are very _____ about your safety. [ ]

A: interested
B: frightened
C: surprised
D: concerned

正确答案是：

同类题型

What _______ you ______ to do when you __________ high school

When we visited our headteacher again ten years later, he had changed so much that we could hardly ________ him.

He made decision to visit Eiffel Tower the next day.

下列各句中，没有语病的一项是

No sooner ________ down on bed ________ the telephone rang.