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科目: 來源:河北省模擬題 題型:單選題

Many students didn't realize the importance of study _______ they left school.
[    ]
A. when      
B. until      
C. after      
D. unless

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科目: 來源:同步題 題型:單選題

He called her names, so she won’t forgive him _____ he makes an apology to her.   
[     ]
A. although               
B. once              
C. if                    
D. unless

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科目: 來源:上海模擬題 題型:單選題

It is recommended that the exploration team take with them an extra set of equipment _____
unexpected emergency occurs.
[     ]
A. in that        
B. so that
C. now that          
D. in case

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科目: 來源:江蘇模擬題 題型:單選題

Jack wasn’t saying anything,but the teacher smiled at him _______he had done something very clever.
[     ]
A.a(chǎn)s if  
B.in case
C.while  
D.though

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科目: 來源:江蘇模擬題 題型:單選題

Frank insisted that he was not asleep ________ I had great difficulty in waking him up.
[     ]
A.whether  
B.a(chǎn)lthough
C.for  
D.so

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科目: 來源:山東省模擬題 題型:單選題

I never saw him,         I can remember, reading anything but newspapers.
[     ]
A. as far as          
B. as soon as          
C. unless          
D. until

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科目: 來源:同步題 題型:單選題

Our teacher looked here and there on our playground ________ looking for something.  
[     ]
A. even though
B. even if
C. as if
D. only if

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科目: 來源:上海模擬題 題型:單選題

Man must keep in mind that it will be years ______ the earth recovers from the damage he makes to it.
[     ]
A. when            
B. before              
C. since            
D. until 

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科目: 來源:同步題 題型:單選題

-Do you know about the accident which happened in the center of the city?    
-Yes. But it was some time            we realized the truth.
[     ]
A.before
B.when
C.since
D.until

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科目: 來源:同步題 題型:單選題

We won't give up ________ we should fail ten times. 
[     ]
A. even if  
B. since
C. whether  
D. until

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