选出适当的词填空.(30分)
（1）_________make food for us.
（2）________check our teeth.
（3）________ catch criminals.
（4）_________help us to learn.
（5）_________put out fires.
（6）__________help sick people.
读一读，找出每组单词中不同类的一个。（10 分）
(1)A. by shipB. by planeC. go home
(2)A. hospitalB. museumC. helmet
(3)A. turn right B. turn leftC. on foot
(4)A. stopB. waitC. sled
(5)A. mustB. oftenC. sometimes
They are _________ about their holidays.
A. talk B. talking C. talked
They _________games , last week.
A. play B. playing C. played
Peter _______ to school _______ bike.
A. going , by B. goes , by C. go , on
She runs to the breakfast table ______ 6:45 a.m.
A. at B. in C. to