—Have you ever been to Shanghai, Mary?—Yes. I ______ there for three days with my parents last year.
You’d better take care, _____ you will hurt your eyes.
Helen loves reading. She has read _____ books this month.
It’s surprising that Mr. Ma’s little daughter _____ speak English so well.
–May I use your MP4 today, Paul? --_______. I will not use it.
I will try my best to stop my son from _____ the same mistake.