________，people in the south like rice while people in the north like wheat.
| A．In general | B．In common |
| C．To be honest | D．Worse still |
He is so busy with the research _____ he has no time left for any other activity.
| A．which | B．that | C．why | D．Because |
It was going to be some time _____ he would see his father again.
| A．before | B．after | C．since | D．When |
She does not know _____ the situation, for she is too inexperienced.
| A．how to deal with | B．what to deal with |
| C．how to deal with it | D．what to do with it |
The reason ____he was late was ____he had taken a wrong bus.
| A．why; because | B．for; because of |
| C．why; that | D．for; that |
—Do you know what the letters MBA _____?
—Sorry, I don’t know.
| A．stand for | B．stand by |
| C．belong to | D．take place |