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:
请阅读Passage l。完成第21—25小题。Passage 1Unless you spend much time
请阅读Passage l。完成第21—25小题。Passage 1Unless you spend much time sitting in a colle