Lots of people like to take a walk on Nanjing City Wall since it .
My mother and I ___at home ____that snowy night.
-What was the weather like?-It rained ___and people could ___go out.
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 do weekends?