问题补充:
You may use the room as you like, you clean it up afterwards.
A. as if
B. so long as
C. now that
D. as far as
答案:
A. as if
(答案→)B. so long as
C. now that
D. as far as
解析:考查连词。A.as if似乎,好像B.so long as只要 C.now that=since,既然 D.as far as远及。句意:你可以随便用这个房间,只要你过后把它打扫干净。