___________you try to do something beyond what you have already mastered, you will never grow.
| A．Since | B．When | C．Though | D．Unless |
—How many teachers are party members in your school?
—Part members___________________ one fifth of the number of the teachers in our school.
| A．take up | B．set up | C．make up | D．fix up |
— May I have _______ honor of dining with you ?
— Sure , I feel quite honored , because you are _______ honor to our city .
| A．an ; the | B．the ; an | C．the ; the | D．an ; an |
At last they climbed up the mountain，on the top of whichan old temple dating back to 1,500 BC.
A. is lying B. there lies C. does lie D. 1ies
Generally speaking，prices of daily goodsthrough the Internet are lower than store prices.
| A．bought | B．are bought | C．buying | D．to buy |
—I may go to the market this afternoon.
—Could you please buy some fruit for meyou are there?
| A．since | B．if | C．while | D．fits |