________ both sides accept the agreement will a lasting peace be established in

________ both sides accept the agreement will a lasting peace be established in

题型:同步题难度:来源:
________ both sides accept the agreement will a lasting peace be established in this region.[     ]
A. If only
B. Only if
C. Unless
D. As long as
答案
B
举一反三
In time of serious accidents, we know some basic things about first aid,        we can save lives.   [     ]
A.whether      
B.until    
C.if          
D.unless
题型:同步题难度:| 查看答案
There are many things to consider when you are looking for a house, ____ to buy or just intend to rent.   [     ]
A.though              
B.although    
C.   if                    
D.whether
题型:同步题难度:| 查看答案
It was some time        we realized the truth.    [     ]
A.when    
B.until    
C.since    
D.before
题型:同步题难度:| 查看答案
Scientists say it may be five or six years         it is possible to test this medicine on human patients.      
[     ]
A. since                        
B. after      
C. before                      
D. when
题型:同步题难度:| 查看答案
Please remind me            he said he was going. I may be in time to see him off.    [     ]
A. where                    
B. when    
C. how                      
D. what
题型:同步题难度:| 查看答案
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