讲析：1. 到镇上出售农副产品的当然是农民。

2. 农民到镇上自然是卖蔬菜等，联系下文也可确定。

7. But　　 8. only 　　9. What　　 10. it　　 11.answer　

9. at 10. See.

讲析：3. the day after tomorrow 意思是“后天”；the day before yesterday 意思是“前天”。

9. have to visit the Great Wall　 10. have to do some exercise

7. have to go swimming　　　 8. have to play volleyball

5. have to watch TV with my family　　 6. am going out for a trip

3. have to eat out with my family　 4. have to go out to draw some pictures

8. study for a test 的意思是“准备考试”。类似的词组有：study for a maths test

“准备数学考试”。

Section B

7. football　 8. science test　 9. birthday party　 10. at home

讲析：5. “have to” 意思是“必须”，“不得不”，表示客观条件使得必须如此做，后面跟动词原形，有人称，数，和时态的变化。　 例如：

He has to spell his name many times.

他不得不把他的名字拼写很多次。

We have to be there early.

我们必须早早到那里去。

Do you have to go now?

你现在就得走吗？

11. 去参加我表兄的生日聚会　　 12. 感到不舒服