---It’s very important _____ us to make plans before a new term. ---Yes. You must try to make it carefully.
I know junk food is not good ____my health.
—Is that your grandpa ?—Yes, although he is very old ______ he works very hard.
What do you usually doweekends?
—Hi. _______________. ----Yes. It’s been a long time.
Tom ______ watch TV after supper _____ last night.