-Can you go swimming with us this afternoon?

-I’d like to, but I ________ take care of my little sister at home because my mother is ill．

1. A.
   need
2. B.
   must
3. C.
   should
4. D.
   have to

词语释义，从题中所给的A、B、C、D四个选项中选出与句中划线部分意义最接近的解释，并将所选答案涂到答题卡（填在答题卷）的相应位置上。

1. At first, I found it hard to follow the teacher because she spoke too quickly.

A. easy B. difficult

C. heavyD. interesting

2.— Would you like to go swimming with us this afternoon?

— I’d love to. But I have to look after my cousin at home.

A. take care of B. take after

C. look the same as D. feed

3. — Excuse me. Is there a supermarket in the neighborhood?

— Yes, turn right at the corner and then follow your nose. You can’t miss it.

A. smell with your nose B. come there

C. go straight D. find your nose

4. I must study hard. I don’t want to let my teachers down because they give me much help.

A. make; happy B. make; tired

C. make; excitedD.make; disappointed

5.— It is a red-letter day for me. I won the first prize in the school competition contest.

— Really? Well done!

A. an important day B. an unhappy day

C. a busy day D. a free day