The girl arranged to have piano lessons at the training center with her sister ________ she would stay for an hour.
| A．where | B．who | C．which | D．what |
Your face seems __________. I haven't met you here in the old days.
| A．unfamiliar | B．unknown |
| C．unsimilar | D．alike |
Can you __________ behind after the others have gone and help me clear up?
| A．stay | B．fall | C．remain | D．turn |
Duncan, __________ NBA star, is one of __________ few basketball players who are very popular with Chinese fans.
| A．an; the | B．an; a |
| C．the; the | D．the; a |
The number of students in our school __________ about 30, 000 and __________ them study hard.
| A．is; a large amount of |
| B．are; a number of |
| C．are; large amounts of |
| D．is; a large number of |
This watch is __________ to all the other watches on the market.
| A．superior | B．advantageous |
| C．super | D．beneficial |