What happens when ______water boils?
A. a B. An
C. the D. /
1.Good friends should always share each other’s ______.（happy）
2.We saw the ______in blue run out of the bank quickly just now. (rob)
3.It would be______ to live on the Mars (火星) nowadays. (possible)
4.There are all kinds of ______ after class in our class. (activity)
5.If you exercise ______ every day, you will be stronger and stronger. (regular)
6.We feel______ with air-conditioned rooms in summer or winter. (comfortably)
7.The students from our school make leaf cards______ to tell us to love the Earth. (they)
8.It is very______ that so many young people go abroad for further study. (surprise)
A. floating B. allow C. grow D. Known
A. sadly B. space C. tape D. Safety
A. brightly B. film C. diary D. Sightseeing
A. rob B. modern C. hope D. Drop
