题目内容:
It was not until dawn__________ the snowcapped peak in the remote area in Tibet.
A.that they sighted
B.did they sight
C.that they did not sight
D.had they sighted
参考答案:
答案解析:
It was not until dawn__________ the snowcapped peak in the remote area in Tibet.
A.that they sighted
B.did they sight
C.that they did not sight
D.had they sighted