i_finish my homework before 6:00 pm.Because I will go to the cinema at 7 p.m A.must B.can C.did
问题描述：
i_finish my homework before 6:00 pm.Because I will go to the cinema at 7 p.m A.must B.can C.did
答
k
答
must
答
must 因为我七点要去电影院所以我必须在六点完成我的作业 must必须 选A
答
A
must：必须 can：可以 did：过去发生的