16. We can find many pictures ____　 by Xu Beihong in the museum.　 (draw)

drawn　

15. They ___ to help the farmers with the harvest last autumn.　 (ask)

were asked

14. Dinosaurs ____ about 65 million years ago.　 (disappear)

disappeared　

13. This pair of scissors ___ in China. 　(make)

is made

12. Old people must be looked after well and ______politely. 　　D

A. speak　　 　B. spoken　　 C. speak to　 　D. spoken to

11. The radio says a wild animal zoo is ____ in our city next year.　 (build)

to be built　

10. Many bridges ___ over the river since liberation.　 (build)

have been built

9. A half of the news _____ in English.　 (write)

is written

8. They ___ day and night.　 (make, work)

are made to work　

7. He wanted to know what ____ to her.　 (happen)

had happened