问题补充:
The problem is too difficult for him. He solve it by himself without any help.
A. can
B. mustn
C. shouldn
D. needn
答案:
(答案→)A. can
B. mustn
C. shouldn
D. needn
解析:can 不能,不可能;mustn 禁止;shouldn 不应该;needn 不必。句意:这个问题对他来说太难。没有帮助他自己不可能自己解决。故选A。
时间:2018-10-26 23:23:18
The problem is too difficult for him. He solve it by himself without any help.
A. can
B. mustn
C. shouldn
D. needn
(答案→)A. can
B. mustn
C. shouldn
D. needn
解析:can 不能,不可能;mustn 禁止;shouldn 不应该;needn 不必。句意:这个问题对他来说太难。没有帮助他自己不可能自己解决。故选A。