Frank, where have you been? We _____ you since 2 o’clock.
| A．have been waiting for | B．are waiting for |
| C．had waited for | D．waited for |
Such food doesn’t keep long. You may as wellit in fridge.
| A．compensate | B．process | C．preserve | D．reserve |
David did not regret saying what he did but felt that heit differently.
| A．could express | B．would express |
| C．could have expressed | D．must have expressed |
Tom is an aggressive but easygoing person,will succeed whatever career he chooses.
| A．the one who | B．one who | C．the one | D．one |
Some parents want to shelter their kids from every kind of danger, real or.
| A．having imagined | B．being imagined |
| C．imagined | D．to be imagined |
—I’m terribly sorry that I made your table cloth dirty.
—___________.
| A．Never mind | B．Don’t mention it | C．That’s right | D．Sorry |