Many trees and flowers _________ in our city every year.

A. planted B. are planted C. were planted D. plants

课堂练习：根据要求改写句子

1.The headmaster praised Ben for his honesty.(改为被动语态）

Ben _________ _________ for his honesty _________ the headmaster.

2.Mother will buy Jack a new shirt.(改为被动语态）

A new shirt ___________ ___________ ___________ Jack by Mother.

3.You had better take the wounded soldiers to hospital at once.(改为被动语态）

The wounded soldiers had better ___________ ___________ to hospital at once.

4.The adults tell the children not to swim in that deep river.(改为被动语态）

The children ___________ ___________ not to swim in that deep river.

5.Can some aged Chinese understand Russian?(改为被动语态）

Can ___________ ___________ ___________ by some aged Chinese?

6.The boss made the employees work ten hours a day.(改为被动语态）

The employees were made ___________ ___________ ten hours a day.

7.The Spring Festival is welcomed by the Chinese all over the world.(改为主动语态)

The Chinese all over the world ___________ the Spring Festival.

8.The price of meat has risen from ten yuan to fifteen yuan recently.(保持原句意思)

The price of meat ___________ ___________ ___________ from ten yuan to fifteen yuan recently.

9.The firemen are using long ladders for rescuing people in tall buildings.(改为被动语态)

Long ladders ___________ ___________ ___________ for rescuing people in tall buildings by the firemen.

10.Who looks after the children in the kindergarten?(改为被动语态）

By ___________ ___________ the children ___________ after in the kindergarten?.

Nothing can the girl from there.

A. be stopped; going B. prevent; going

C. stop; to go D. prevent; to go

Although you have lots of difficulties, you must ______your work.

A. carry out with B. carry away on C. carry on with D. carry over

--It’s kind him to help me solve the problem.

--Yes, he is always kind everybody.

A. of; of B. of; to C. to: of D. to; to

Students not to use mobile phones in o it school now.

A. ask B. asked C. ar a asked D. were asked

World Earth Day in 1970 to tell us to protect our planet.

A. sets up B. set up

C. is set up D. was set up

The terrorists（恐怖分子）in Xinjiang ______ last month.

A. are caught B. was caught

C. were caught D. is caught

The doctor has operated the weak soldier carefully for about 10 hours.

A. to B. for C. with D. on

(2012●淮安市) Last March, many trees ________ along the streets to make our city more beautiful.

A. were planted B. were planting C. had planted D. planted