用方框中所词组的正确形式填空。每词只用一次。
laugh, tooth, little, serious, minute
【小题1】Lisa is of us. She hardly ever smiles.
【小题2】The bus ride usually takes us about 25 to get to school?
【小题3】My baby brother has three . He is too young to eat anything.
【小题4】We must try to eat meat. Too much meat is bad for our health.
【小题5】He is very funny. He always makes his classmates . the most serious
网友回答
(答案→)the most serious
解析：
【小题1】联系下文可知句意为：丽萨是我们中最严肃的一个。她几乎从来不笑。故填形容词最高级the most serious。注意多音节形容词的最高级借助于单词most构成，定冠词the不能省略。
【小题2】结合语境可知我们乘公交车用大约25分钟到达学校。故填复数名词minutes。
【小题3】联系下文可知此处指的是牙齿，three是复数，故填复数名词teeth。注意tooth的复数形式是不规则变化。
【小题4】联系下文可知前文意思是少吃肉，故填little的比较级less，更少的。
【小题5】联系上文他很有趣。可知他经常让同学们发笑。Make后接不带to的不定式，故填原形动词laugh。