用所给单词的适当形式填空：1.What nationality is Mary?---She is___.(America)
2.Our school organizes many__for students after school.(active)
3.How___water is there in your glass?(many)
4.How__the cartoon looks!(fun)
5.I'd like to take part in a__contest.(sing)
6.What's your plan for for the coming__Day?(nation)
7.How long__it__(take) you to go to school every day?
8.He usually__(finish) his homework late in the evening.
9.Listen!Joan__(sing) in the next room.She often__(sing) there.
10.The students__(visit) Shanghai University next Friday.
11.Jane often__(have) some bread for breakfast.
12.I like__(play) football because it is an exciting sport.