6. A. how many B. how old C. what D. who

5. A. your B. my C. his D. her

4. A. sent B. asked C. told D. found

3. A. so B. and C. or D. but

2. A. sleep B. lunch C. class D. play

1. A. good B. tall C. rich D. fat

10. A, terribly 是副词，而afraid 是表语形容词，frightened 通常用来形容人，因此选择terrible 修饰名词fog。

　(2)

　John is a famous writer now. But he said he was not a (1)______ student when he was young. He was often late for (2)_____ and didn't like doing his homework. Sometimes, he slept in class while the teacher was teaching. He didn't understand much, (3)______ he always thought he understood everything. One day the teacher (4)_____ the students a question, “When Jack was ten years old, (5)_______ brother Bob was twenty, Jack is fifteen now and (6)______ is his brother Bob?” John said, “That's easy. Bob is twice as old as Jack, so he is now thirty.”

　Another time, the (7)______ in a science class asked, “When it thunders(打雷), (8)______ do we always see the light before we (9)______ the sound?”

　“But, Miss,” said John quickly, “don't you (10)______ our eyes are in front of our ears?”

9. D, 在歌剧院中表演需要看到指挥的是合唱队的歌手们。

8. C, so as to 是一个固定搭配。

7. C, 上文已经提到one hand, 另一只用the other hand。