27. Though____________of the danger of walking alone in the street at night, he wouldn’t have anyone accompany him.
| A．warning | B．being warned | C．warned | D．having warned |
The bus __________ passengers outside the airport.
| A．gives up |
| B．picks up |
| C．turns up |
| D．eats up |
—Is the dentist at work?
—I'm sorry to tell you he is on __________.
| A．an enough holiday long |
| B．a long enough holiday |
| C．a holiday enough long |
| D．a long vacation enough |
—Peter's rarely ill,__________ he?
—__________. He is quite healthy.
| A．is；No |
| B．isn't； Yes |
| C．has；Yes |
| D．hasn't；No |
The Smiths felt __________ about their daughter who had gone to the clinic for three hours.
| A．anxiously |
| B．anxious |
| C．eagerly |
| D．painful |
—I'm leaving for the doctor's this afternoon.
—OK, but make sure __________ when you leave.
| A．to lock up |
| B．for locking up |
| C．you lock up |
| D．you locked up |