问题
单项选择题
My friend was gone ______ after staying in the same house for over six months.
A.for good
B.for all
C.on end
D.on the spot
答案
参考答案:A
解析:[分析] 固定搭配 A.for good永久地,一劳永逸地;B.for all尽管;C.on end连续地;D.on the spot当场;因此A为答案。