If you want to borrow a football after school, your student card here.
A. has to leave
B. must leave
C. has to be left
D. must be left
网友回答
A. has to leave
B. must leave
(答案→)C. has to be left
D. must be left
解析：have to 表示客观需要，must表示主观需要，这是客观需要，所以不能选D项。