用括号内所给动词的适当形式填空。

1. The bridge over the river ________________(finish) three years ago.

2. A present ________________(give) to me by my friend on my birthday.

3. He ________________(see) to swim in Daming Lake yesterday.

4. Annie ________________(invite) to the party. She had a wonderful time with us.

5. The book ________________(translate) into many other languages last year.

6. You are late. All the tickets ________________(sell) out an hour ago.

7. My shoes ________________(wash) by my mother yesterday.

8. ________ a lot of useful things ________(invent) by Edison?

9. The window ________________(clean) ten minutes ago，and the room looks bright now.

10. In England，nobody under the age of 18 ________________(allow) to drink in bars.

按要求完成下列句子，每空一词。

1.We bought a piano last term.(改为被动语态)

A piano ________ ________ by us last term.

2.Penicillin was discovered by Alexander Fleming.(改为一般疑问句)

________ Penicillin ________ by Alexander Fleming?   

3.The books were written by Mr. Li many years ago.(改为否定句)

The books ________ ________ by Mr. Li many years ago.

4.Their homework was handed in yesterday.(对画线部分提问)

________ ________ their homework ________ in?

15.We didn't grow vegetables in the garden last year.(改为被动语态)

Vegetables ________ ________ in the garden by us last year.