问题补充：
----Why are you late ?
----sorry, the bus I took the mud for half an hour, so I had to walk here.
A. had stuck in
B. has stuck in
C. was stuck in
D. has been stuck in
答案：
A. had stuck in
B. has stuck in
(答案→)C. was stuck in
D. has been stuck in
解析：可联系答.案.网客服索取。
