—Jim is very sick these days. He coughs so badly.
—In my opinion, he really ________ listen to the doctor and cut down on smoking.
A．should B．can
C．may D．need
—Where did you get this book?
—I picked it up from a secondhand bookshop if you ________ know.
A．must B．will
C．can D．shall
When Harry was at college, he ________ go to the reading room after supper every day.
A．should B．might
C．would D．could
Don't be angry with us. We ________ with you together, but we were busy with our final reports when you called in.
A．would eat out B．must have eaten out
C．should eat out D．could have eaten out
Your teacher ________ very angry at that moment because you talked back to her like that.
A．should have been B．must have been
C．must be D．might have been
Thanks to my teacher's valuable help, otherwise I ________ my college entrance exam.
A．can't pass B．hadn't passed
C．would not have passed D．have not passed
