_____ of the population in China ____ hardly to say.A. A number , isB. The number ,areC. The number , is
Lisa used to ________the bus to go to school,but now she is used to ________there.
Students should learn how ________ problem.
—Why is Linlin practicing speaking English?—________ abroad for further study.
—Why are you so excited today?—We were told ________ a picnic this weekend.
How kind you are!You always do what you can ________ others.