Although the causes of cancer         , we do not yet have any practical way to

Although the causes of cancer         , we do not yet have any practical way to

题型:同步题难度:来源:
Although the causes of cancer         , we do not yet have any practical way to prevent it.    [     ]
A.are being uncovered    
B.have been uncovering    
C.are uncovering        
D.have uncovered
答案
A
举一反三
With more forests being destroyed, huge quantities of good earth          each year.       [     ]
A. is washing away              
B. is being washed away      
C. are washing away              
D. are being washed away
题型:同步题难度:| 查看答案
— What is that noise?
— Oh, I forgot to tell you that the new machine_____   .[     ]
A. was tested
B. will be tested
C. has been tested
D. is being tested
题型:安徽省模拟题难度:| 查看答案
It is reported that many a new house       at present in the disaster area. [     ]
A. are being built    
B. were being built 
C. was being built  
D. is being built
题型:西藏自治区月考题难度:| 查看答案
—Hi, Tom, can I use your computer for a while this afternoon?  
—Sorry. ________.[     ]
A. It"s repaired
B. It"s being repaired
C. It has been repaired
D. It had been repaired
题型:福建省期末题难度:| 查看答案
With more forests being destroyed, huge quantities of good earth ________ each year.[     ]
A. is washing away  
B. is being washed away
C. are washing away 
D. are being washed away
题型:江苏同步题难度:| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.