C.should not go D.needn’t have gone
5.We______the letter yesterday，but it didn’t arrive.
A.must receive B.ought to receive
C.must have received D.ought to have received
6.Eve was late for class again.She______earlier.
A.should get up B.must get up C.need to get up D.should have got up
7.I am feeling sick.I______so much chocolate.
A.needn’t have eaten B.couldn’t have eaten
C.mustn’t have eaten D.shouldn’t have eaten
