We were on the point of discussing financial investment the telephone rang unexpectedly.A.

发布时间：2020-08-16 07:43:59

We were on the point of discussing financial investment     the telephone rang unexpectedly.
A. while
B. when
C. as
D. once

网友回答

A. while
(答案→)B. when
C. as
D. once
解析：可联系答.案.网客服索取。
以上问题属网友观点，不代表本站立场，仅供参考！