--- It’s so late. Our son______ be back!
--- Don’t worry. I dare say he ______ have some extra work to do.
| A．can; must | B．will; might | C．should; must | D．must; may |
She missed the plane, _____ driving very fast to the airport.
| A．unless | B．despite | C．though | D．without |
My brother is really _____. He often works in his office far into the night.
| A．open-minded | B．hard-working | C．self-confident | D．warm-hearted |
There is ____ universal concept among ____ parents that the more they feed their kids, the healthier they will grow up to be.
| A．an, the | B．a, the | C．a, / | D．/, the |
35．—Why didn't you remind him of the possible danger?
—But what ____ otherwise? He never listens to me．
| A．could I do | B．could I have done | C．should I do | D．must I have done |
34．—Your colleague's spoken English is beautiful, Lily．
—It's no wonder．She ____ in the USA for a year as a visiting professor．
| A．worked | B．has worked | C．had worked | D．has been working |