动词填空。

1. How do you study Chinese? By ______ (read) a lot of books.

2. You need _____ (wear) warm clothes, or you'll catch a cold.

3. Students should be ______ (ask) to study hard.

4. There are about eight ______ (million) people in our city.

5. I'd wait for her to introduce _______ (she) to me

6. If I _______ (be) you, I _______ (take) a long walk before going to bed.

7. I spend half an hour _______ (watch) football matches.

8. She 'd invite me _______ (have) dinner at her house.

9. I listened to a song _______ (call ) Heart String.

10. This book must belong to _______ (he).

欧欧将一些硬币放入15个盒子中，每个盒子中放入的硬币个数既不是4的倍数也不是5的倍数；并且硬币个数都不相等，且都不小于23．那么，欧欧至少有硬币______个．