What will people die of in 100 years? If you think that is a simple question, you ______ attention to the revolution taking place in biotechnology．
| A．have not been paying | B．had not been paying |
| C．were not paying | D．will not be paying |
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 |
All of us thought _________ no use talking about some unpractical matters frequently.
| A．that | B．it | C．this | D．which |
The deadline for applications is 30 April. Do you think you can ______ it?
| A．set | B．reach | C．grasp | D．meet |