问题

You look unhappy.Why?—I’m always __________ when I don’t get any mail.[ ]

A: confused
B: fearful
C: upset
D: doubtful

正确答案是：

同类题型

There is ______ word in the dictionary

Don’t put the waste on the ground—Oh, I’m very sorryI ________ the dustbin（垃圾箱） there

Goodbye, Miss Zhao.—________ .

Put the following events_______ according to the time when they happened and then putthem______ oftheir importance in history[ ]

Do you mind ____ next to you ——_____.