．Who is knocking at the door?
——It ______ Mr. Black, because he_______Washington.
| A．can't be;has gone to | B．may be;has been to |
| C．must’t be;has gone to | D．may be;went |
I didn’t have any difficulty ______English well.
A.studying B.study C.to study
—It’s reported that the government hasn’t found the missing plane’s black box yet.
—__________.
| A．I don’t think so | B．I’m sorry to hear that |
| C．I’m afraid not | D．I hope so |
—What do you think of your boss?
—He ’s kind-hearted. Not only _______ what to do, but also he lent me money.
| A．he advised me | B．does he advised me |
| C．did he advise me | D．he advised to me |
—If the question________ correctly, you will have a chance to visit Disneyland.
—Great. I believe I can do it.
| A．will be answered | B．answers |
| C．will answer | D．is answered |
—Have you decided ____________ on April 1st?
—I will put a piece of paper which says “Hi” on my brother’s back.
| A．what joke will you play on your brother |
| B．who you will fool |
| C．what will you put on your brother’s back |
| D．how you will fool others |