问题
选择题
As it turned out to be a small house party, we _______ so formally.
A．needn’t dress up
B．didn’t have to dress up
C．might not have dressed up
D．needn’t have dressed up
答案
答案：D
根据前一句说这是一个小型的家庭聚会，所以后一句意思是：本没必要，故选D。