Volunteering gives you a chance________lives，including your own.
| A．change | B．changing |
| C．changed | D．to change |
______ you work hard, you’ll succeed some day.
| A．As long as | B．As soon as | C．As far as | D．As well as |
The weather turned out to be fine yesterday. I the trouble to carry my umbrella.
| A．needn’t take | B．couldn’t take |
| C．needn’t have taken | D．couldn’t have taken |
It was on a lonely island he was found alive after the accident.
| A．where | B．which | C．what | D．that |
______ an accurate map, you might not get lost in the forest.
| A．Use | B．Used | C．Using | D．To use |
The teacher explained a second time, the students should have difficulty in doing the experiment.
| A．although | B．in case | C．so that | D．but |