问题
选择题
Only when Jim was away from home _______ how nice his family was.
A．did he realize
B．he realized
C．has he realized
D．he has realized
答案
答案：A
题目分析:考查倒装句。Only+状语并且位于句首时，主句部分要用部分倒装语序，故排除B、D选项。而根据when Jim was away from home可知句子应该用一般过去时，所以A选项正确。句意：直到他离开家以后，他才意识到家是多么的好。