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841._________ this afternoon,you would have to come again next week.
A.The boss didn't return
B.The boss were not to return
C.Were the boss not to return
D.Didn't the boss return
842.Don't you want to got ot a karaoke bar with us?
I wish I ______,but I have an appointment.
A.may
B.could
C.can
D.should
