4.There 　　　　(used , be) no electricity but now electricity 　　　(used , run) machines.

3.English 　　　　　　(used , communicate) in many countries.

2. The room 　　　　　(used , be) a meeting room, but now it　　　　 (used , store) things.

1. He　 　　　　(used ,take) a walk after supper.

11. Who would you rather have 　　　　(write ) the report?

IV. used to do / be used to doing / be used to do

10. He 　　　　his money stolen in the bus.

9. He had his clothes washed by his mother = He 　his clothes to be washed by his mother.

8. Who 　　　　　the door closed? It’s so hot.

7. They were very busy so they 　　　　　the machines running all through the night.

6. Mr. Wang ______ his secretary call Mr. Lu .