无效合同的法律效力()。
A.自登记时无效
B.自履行时无效
C.自订立时无效
D.自被确认无效时无效
参考答案:C
解析:无效的合同自始没有法律约束力。此时的“始”应为合同订立时。
I should very much like to have gone to the party, but ______.
A.I'm not invited
B.I won't be among the invited
C.they won't invite me
D.they didn't invite me
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