He tried his best to solve the problem , ______difficult it was.     [     ]A. h

He tried his best to solve the problem , ______difficult it was.     [     ]A. h

题型:同步题难度:来源:
He tried his best to solve the problem , ______difficult it was.     [     ]
A. however                
B. no matter      
C. whatever                
D. Although
答案
A
举一反三
句型转换。
1. Wang Xiao didn"t go to school. She had a fever. (合并为一个复合句)
    Wang Xiao didn"t go to school _____ she had a fever .
2. If you don"t study hard, you won"t pass the exam. (改为同义句)
   You won"t pass the exam _____ you study hard.
3. I am 15. My brother is 13. (合并为一个复合句)
    I am two years older _____ my brother.
4. It"s raining heavily, but I still go to school. (改为同义句)
    I still go to school _____ it"s raining heavily.
5. It is three years since I joined the army. (改为完成时态)
    I have _____ the army for three years.
题型:同步题难度:| 查看答案
I know nothing about the news _____ my friend told me yesterday.[     ]
A. because    
B. since
C. until    
D. after
题型:同步题难度:| 查看答案
I am sleepy _____ I didn"t sleep well last night.[     ]
A. when    
B. that
C. because    
D. so
题型:同步题难度:| 查看答案
—I"m not sure _________there are living things on the planets or not.
—Even scientists aren"t sure about it.[     ]
A. whether      
B. where      
C. why      
D. what
题型:同步题难度:| 查看答案
—Did you have a good time at Alice"s birthday party?
—Yes,indeed. It’s several years_____ I enjoyed myself so much.[     ]
A. when        
C. since
B. before      
D. that
题型:同步题难度:| 查看答案
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