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请教这题选哪个?-Youdidn'tinviteMarytotheball?...请教这题选哪个?-Youdidn'tinviteMarytotheball?-_her,too?A.MustIinviteB.ShouldIhaveinvitedC.MustIhaveinvitedD.ShouldIinvite

题目详情
请教这题选哪个?-You didn't invite Mary to the ball?...
请教这题选哪个?-You didn't invite Mary to the ball?-_her,too?A.Must I invite B.Should I have invited C.Must I have invited D.Should I invite
▼优质解答
答案和解析
B.Should I have invited
should have done(本该做却没做,过去)