问题补充:
He is good at maths and it won’t be long he works out the problem.
A. since
B. until
C. before
D. when
答案:
A. since
B. until
(答案→)C. before
D. when
解析:可联系答.案.网客服索取。
时间:2021-05-30 07:02:38
He is good at maths and it won’t be long he works out the problem.
A. since
B. until
C. before
D. when
A. since
B. until
(答案→)C. before
D. when
解析:可联系答.案.网客服索取。