11.　 　How has agricultural _________ (产品) changed during these years?

10.　 　The company is famous for the p________ of small cars.

9.　　　 My car is old but in good c_________.

8.　　　 The garden was full of ________(杂草).

7.　　　 Corn is often _______ (播种) in May.

6.　　　 You should r_______ your hat in the classroom.

5.　　　 Japan _______(进口) wood from Canada.

4.　　　 They admired the pianist’s perfect ________.(技巧)

3.　　　 Now electric pumps are used in ________(灌溉).

2.　　　 We are often g_______ by our sense of what is fun.