My parents have promised to come to see me before Ifor Africa.
| A． | have left | B． | leave | C． | left | D． | will leave |
He________that he could finish the job without any help.
| A．claimed |
| B．required |
| C．demanded |
| D．asked |
We heard an explosion and________for cover.
| A．hid |
| B．dived |
| C．walked |
| D．found |
China is one of the largest countries in the world，________9.6 million square kilometres.
| A．to cover |
| B．covered |
| C．covers |
| D．covering |
Robert is said________abroad, but I don't know what country he studied in.
| A．to have studied |
| B．to study |
| C．to be studying |
| D．to have been studying |
________down the radio—the baby's asleep in the next room.
| A．Turning |
| B．To turn |
| C．Turned |
| D．Turn |