根据所给英文写出单词的合适形式。 小题1:Lily is a good (swi
题型：听力题
问题：
根据所给英文写出单词的合适形式。
小题1:Lily is a good (swim) because she is the first in the swimming match.
小题2:We usually brush our teeth (two) a day .
小题3:I have a little dog . (it) nose is white.
小题4:How long do you spend (chat) with your e-friends on the Internet every day?
小题5:Fruit and vegetables are (health) food.
，则AB=（）。