As it turned out to be a house party, we（）so formally.
A: needn't dress up
B: needn't have dressed up
C: didn't need to dress up
D: didn't need to have dressed up
A: needn't dress up
B: needn't have dressed up
C: didn't need to dress up
D: didn't need to have dressed up
举一反三
- As it was only a small house party, we ________so formally. A: needn’t dress up B: didn’t need to have dressed up C: didn’t need dress up D: needn’t have dressed up
- As it turned out to be a small house party, we ________ so formally. A: needn't dress up B: did not have dressed up C: did not need dress up D: needn't have dressed up
- As it turned out to be a small house party, we ______ so formally. A: mustn't have dressed up B: didn't have to dress up C: might not have dressed up D: needn't have dressed up
- As it turned out to be a small house party, we ______ so formally. A: shouldn't have dressed up B: needn't have dressed up C: mustn't have dressed up D: couldn't have dressed up
- As it turned out to be a small house party, we need not have dressed up so ________. A: previously B: formerly C: casually D: formally