问题
选择题
— Are you still going to Shanghai for the Spring Festival?
— Yes, but I really _____ because I have a lot of things to deal with.
A．can’t
B．mustn’t
C．won’t
D．shouldn’t
答案
D
should在此表示“照道理”，本句意思是“但我真的不该去，因为我有许多事要处理”。