题目内容

It is believed that a new kind of drug ______ by the scientists and they are hopeful that they
will succeed in a couple of months.     
[     ]
A. has been developed  
B. is being developed  
C. is developing  
D. has developed
B
练习册系列答案
相关题目
将以下句子改成被动语态。
1. Mary has locked the door.
   ___________________________________________________
2. She has told me about the story.
   ___________________________________________________
3. I have read this book many times.
   ___________________________________________________
4. We have completed all the preparations for the task, and we're ready to start.
   ___________________________________________________
5. This company has produced new types of computers.
   ___________________________________________________
6. They have interviewed several teachers for the job.
   ___________________________________________________
7. George has sent some texts and pictures to his friend's cell phone.
   ___________________________________________________
8. They have developed some programs for the human resource department of their company.
   ___________________________________________________
9. Someone has put the book under the bench for more than two days.
   ___________________________________________________
10. The typhoon has damaged the bridges because of its strong wind.
   ___________________________________________________
把下列句子变为被动语态。
1. She is teaching the boy.→
   ______________________________________________________________
2. Now he is watering the trees.→
   ______________________________________________________________
3. One of the best students is writing the report about the environment.→
   ______________________________________________________________
4. We are painting our classroom now.→
   ______________________________________________________________
5. Some factories are polluting the rivers.→
   ______________________________________________________________
6. People are not hunting wild animals.→
   ______________________________________________________________
7. Look! Their aunt is taking care of the children.→
   ______________________________________________________________
8. Is the doctor examining the patient now? →
   ______________________________________________________________
9. Are the workers building the library? →
   ______________________________________________________________
10. Why are you cleaning the house? →
   ______________________________________________________________
— Did you finish your homework yet?
— Yeah. We turned it in, and now it ____.
[     ]
A. is grading
B. is graded
C. is being graded
D. has graded
It is reported that our children are being ________ by lead in the air.
[     ]
A. poison  
B. poisoned
C. poisonous  
D. poisoning
-Have you handed in your school-work yet?
-Yes, I have. I guess it           now.
[     ]
A．has graded
B．is graded
C．is being graded
D．is grading
— What's that noise?
— Oh, I forgot to tell you. The new machine ______.
[     ]
A. was tested    
B. will be tested  
C. is being tested  
D. has been tested  
— Hi, Terry, can I use your computer for a while this afternoon? 
— Sorry. _____.
[     ]
A. It's repaired
B. It has been repaired
C. It's being repaired
D. It had been repaired
— Have you handed in your schoolwork yet?
— Yes, I have. I guess it ____ now.

[     ]

A. has graded
B. is graded
C. is being graded
D. is grading

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网