选C can,可以,会
A would (委婉地)可以.比如:Would you pass me the salt?
B must 必须(命令式的)比如:You must finish your home work.
C can 可以,会
D should 应该.I should do my home work first before watching TV.
选C can,可以,会
A would (委婉地)可以.比如:Would you pass me the salt?
B must 必须(命令式的)比如:You must finish your home work.
C can 可以,会
D should 应该.I should do my home work first before watching TV.