问题补充:
We were about to climb up to the top of the mountain it began to rain heavily.
A. as
B. while
C. when
D. since
答案:
A. as
B. while
(答案→)C. when
D. since
解析:可联系答案网客服索取。
时间:2020-05-05 11:34:49
We were about to climb up to the top of the mountain it began to rain heavily.
A. as
B. while
C. when
D. since
A. as
B. while
(答案→)C. when
D. since
解析:可联系答案网客服索取。