Some travelled right into the heart of Africa guessing where the River Nil andit where it went.
| A．began;followed | B．might begin;following |
| C．begins;follows | D．must begin;followed |
All people,_______ they are old or young, rich or poor, have been trying their best to help those in need since the disaster.
| A．even if | B．whether | C．no matter | D．however |
With his work________,the businessman stepped back to his seat, feeling pleased that he was a man of action.
| A．completing | B．to complete | C．completed | D．completes |
—Have you finished your report yet? —No, I’ll finish it in _____ten minutes.
| A．other | B．another | C．more | D．less |
The basketball match will be put off if it ________.
| A．will rain | B．rained | C．is raining | D．rains |
When a pencil is partly in a glass of water, it looks as if it ________’
| A．breaks | B．were broken | C．has broken | D．had been broken |