问题补充:
They had to before they finished the course because they were not well disciplined.
A. drop in
B. drop out
C. drop off
D. drop by
答案:
A. drop in
(答案→)B. drop out
C. drop off
D. drop by
解析:可联系答.案.网客服索取。
时间:2021-11-18 22:36:53
They had to before they finished the course because they were not well disciplined.
A. drop in
B. drop out
C. drop off
D. drop by
A. drop in
(答案→)B. drop out
C. drop off
D. drop by
解析:可联系答.案.网客服索取。