______ the students found the soldier's idea interesting, the system was too difficult to be
of practical use.   
[     ]
A. While      
B. Unless       
C. As soon as      
D. Even if
_____ all his efforts , he failed.
[     ]

A. Though  
B. In spite of
C. Even though
D. Instead of

I used to love that film      __I was a child, but I don't feel it that way any more.  
[     ]
A. once            
B. when            
C. since            
D. although
Each day is a gift, and ______ my eyes open, I'll focus on the new day and all the happy memories
I've stored away.

[     ]

A. as well as
B. as much as
C. as long as
D. as far as
Doing your homework is a sure way to improve your test scores, and this is especially true ____ it comes
to classroom tests.
[     ]
A. before
B. since
C. when
D. after
_______ you are familiar with the author's ideas, try reading all the sections as quickly as you can.
[     ]
A. So that  
B. Now that
C. Ever since  
D. As long as
_____ you call me to say you're not attending my birthday party, I'll see you at it.
[     ]
A. Whether
B. Though
C. Until
D. Unless
He will come on time _____ it rains.
[     ]
A. ever since 　
B. now that 　
C. even though
D. as if
The little boy won't go to sleep    __  her mother tells a story.    
[       ]
A. or    
B. until      
C. but      
D. whether  
A new survey shows that 54% of Americans do not take prescription medicines _______ though they are important to their health.
[     ]
A. as they instruct
B. as were instructed
C. as to be instructed
D. as instructed
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