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
Dad ,you have worked for three hours ．Stop ____and have a vest, please ．
A． to work B． working
C． work D． works
