So far, the moon___ by man already.

A. is visited
B. will be visited
C. has been visited
D. was visited.

How many trees ___this year?

A. are planted
B. will plant
C. have been planted
D. planted.

A lot of things ___by people to save the little girl now.

A. are doing
B. are being done
C. has been done
D. will be done.

Neither of them ___ in China

A. is made
B. are made
C. were made
D. made.

Look! A nice picture___for our teacher.

A. is drawing
B. is being drawn
C. has been drawn
D. draws.

The book Business@ the Speed of Thought ____in 1999. A. writes B .is written C. wrote D. was written.

Trees and flowers____every year to make our country more beautiful. A .is planted B. was planted C. are planted D. were planted.

An accident____on this road last week. A .has been happened B. was happened C. is happened D .happened.

Translate the following sentences into English.1. ___________(我们的产品可以分为三类) to satisfy the needs from different groups of people.2. ___________(这个新技术发明以来), the cost of production has been greatly reduced.3. The official ___________(因为滥用职权遭到起诉).

Rewrite the sentences in passive voice.（用被动语态改写句子）1.I haven't used my laptop for three months._________________________________________2. The manager offered Patricia an opportunity to work at the headquarters._________________________________________________________________3. People believe that the personal life of celebrities is not really a personal life._____________________________________________________________________