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Youmayusetheroomasyoulikeyoucleanitupafterwards.[]A.sofarasB.solongasC.incaseD.evenif

题目详情
You may use the room as you like _____ you clean i t up afterwards.  
[     ]
A. so far as      
B. so long as      
C. in case        
D. even if
▼优质解答
答案和解析
B