根据句子意思,用括号中动词的适当形式填空.
1.The mother ___her son some milk just now.(feed)
2.It was terrible.Her school ___fire because lightning hit it.(catch)
3.My parents are busy ___all day.They have no time to stay with me.(work)
4.The dog barked at me but it ___ (not bite)me.
5.Is it necessary for you ___ there every night?(go).
6.If you want ___ healthy,you should take some exercise every day.(be)
7.He always ___his teeth before going to bed.(brush)
8.If you want your goldfish to live long,you shuold ___ the tank often.(clean)
9.Do you like watching goldfish ___ around?(swim)
10.It's important ___ too many snacks if you want to be slim.(not eat)