After _____what seemed half an hour,he came at last.

问题描述:

After _____what seemed half an hour,he came at last.
A.it
B.which
C.that
D.what

同学 你是不是把答案都写上去了.就是 after what seemed half an hour,he came at last.after 是介词 然后 你看 从句中缺什么 缺主语 所以 it 可以排除 然后 如果是 that 或者 which的话 前面一定要给出其指代的名词...