问题
选择题
You may use the room as you like ____you clean it up afterwards. [ ]
A. so far as
B. so long as
C. in case
D. even if
答案
答案：B
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You may use the room as you like ____you clean it up afterwards. [ ]
A. so far as
B. so long as
C. in case
D. even if
答案：B