—What would you wish to do if you were a college student again?
—That's very hard to say, but I wish I when I was a college student.
| A．has not studied biology | B．did study biology |
| C．had studied biology | D．studied biology |
You will never gain success________ you are fully devoted to your work.
| A．when | B．because | C．after | D．unless |
— I’ve prepared all kinds of food for the picnic.
—Do you mean we_____ bring anything with us?
| A．can’t | B．mustn’t | C．shan’t | D．needn't |
As John Lennon once said，life is_____ happens to you while you are busy making other plans.
| A．which | B．that | C．what | D．where |
____your own needs and styles of communication is as important as learning to convey your affection and emotions.
| A．Understanding | B．To be understood |
| C．Being understood | D．Having understood |
If Mr. Deweypresent, he would have offered any possible assistance to the people there.
| A． | were | B． | had been | C． | should be | D． | was |