If you feel tired out and unable to think clearly,that is________you have to get

If you feel tired out and unable to think clearly,that is________you have to get

题型:山东省同步题难度:来源:
If you feel tired out and unable to think clearly,that is________you have to get a rest.[     ]
A. why  
B. when  
C. whether  
D. what
答案
B
举一反三
—Have you finished the book? 
—No. I’ve read up to _____  the children discover the secret cave. [     ]
A. which    
B. what  
C. that    
D. where
题型:同步题难度:| 查看答案
Tom was playing computer games all night.________he was late for class. [     ]

A. That"s because  
B. That"s why
C. It"s how  
D. That"s how


题型:福建省同步题难度:| 查看答案
— I rang you at about nine,but there was no reply.
— Oh,that was probably________I was seeing the doctor. [     ]
A. why  
B. when
C. what  
D. that
题型:福建省同步题难度:| 查看答案
— I rang you at about nine, but there was no reply.
— Oh, that was probably________I was seeing the doctor. [     ]
A. why 
B. when
C. what  
D. that
题型:陕西省同步题难度:| 查看答案

— ________was it that David managed to get in contact with the professor?
— Oh,  a friend of mine helped him.


[      ]
A. Where  
B. What  
C. How  
D. Why
题型:同步题难度:| 查看答案
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