No ready technical data was ______ ，but we managed to go without that.
| A．believable | B．convenient |
| C．available | D．accessible |
Remember when you learned to water ski, David? _________ you skied more, you got better and better. It’s the same with language study.
| A．although | B．while | C．as | D． unless |
________ over everything whenever we want to make a decision, many people believe, and we will have less chance of making mistakes.
| A．To think | B．Think | C．Thinking | D．Thought |
Of the equipment we have produced, this sells best, for it has the advantage over ________ of working efficiently.
| A．the others | B．the rest | C．others | D．another |
---I think Maths is playing a more important part in the new test system. What about you?
--- ______. We should be more devoted to it.
| A．No pains, no gains. |
| B．Fact speaks louder than words. |
| C．Great minds think alike. |
| D．Don’t claim to know what you don’t know. |
_______ , and he felt hopeless.
| A．Because Charles was sentenced to death |
| B．As Charles was sentenced to death |
| C．Sentenced to death |
| D．Charles was sentenced to death |