问题描述：
这题为何选It so happen
_________that a policeman was passing by when the accident happened.
A It so happened B Happened it so C So it happened
D So happened it
在这里为何不选 D,不是说so…that句型至于句首要倒装么?
_________that a policeman was passing by when the accident happened.
A It so happened B Happened it so C So it happened
D So happened it
在这里为何不选 D,不是说so…that句型至于句首要倒装么?
问题解答：
我来补答展开全文阅读