问题

It is demanded that the letter ___by the end of this week , dad !—-I’ll do it immediately

A:should mail
B:was mailed
C:mailed
D:be mailed

正确答案是：

同类题型

We need to be______ the long-term effect of playing computer games too much on children.

Life is not always that smooth and I hope you can force a laugh _________ pain

Stay awake! You should know that it ________ to sleep in class

Mr. Miller is so nice. He’s like a father _______ us.

My sister took a photo with Jay Chou last year.—______.