China has the _____ population in the world.
| A．smallest | B．most |
| C．largest | D．large |
The new treatments ____by Norman Bethune helped a number of soldiers ．
| A．invent | B．invents |
| C．inventing | D．invented |
----Can you finish ___ these books before 10 o’clock?
----Yes, I can ．
| A．to read | B．read |
| C．reads | D．reading |
---Remember ____to my daughter’s dance show next Friday．
----Of course I will．I’ll never forget ____ her dance for the first time last year．
| A．to come ;to see | B．coming; to see |
| C．to come; seeing | D．coming; seeing |
I’m sleepy．I prefer _____at home to going out for a walk．
| A．sleeping | B．to sleep |
| C．slept | D．sleep |
When I was walking past his room yesterday evening．I heard him ____the piano ．
| A．playing | B．to play |
| C．played | D．play |