2 . It is surprising for us to know that _______ (wolf) are afraid of humans.

4 . 从方框中选择恰当的词、短语或音标的正确形式填空（每个词、短语或音标仅用一次）。

provide       sad        address        [wʊlf]       break down visit            lead to          drop            wash          sun

1. The boy couldn’t find his mother, so he cried ________.
2. —How many ________ can you see in the zoo?
—Seven.
3. —What’s the weather like today?
—It’s ________ than yesterday.
4. Eating too much sugar can ________ health problems.
5. The temperature in Zhenjiang ________ a lot last week because of the cold air.
6. —Did you notice what happened outside just now?
—No, I didn’t. Because I ________ my clothes at that time.
7. —How can you send the delivery (快递) so fast?
—Maybe because I have remembered all the ________.
8. —What should you do when your car ________ on the way?
—I’ll call the engineer.
9. The teachers came to the village ________ children with better education.
10. —Are the umbrellas behind the door those ________?
—I’m not sure. I’ll ask them later.

8 . In a minute, the farmers came only to find there were no ________ (狼) at all.