找出不同类的单词。
（   ）（1）A.taller        B. dancer            C. shorter
(    ）（2）A.pear         B. policeman        C. peach
（   ）（3）big           B. breakfast         C. dinner
(    ) （4）four           B. fourth            C. second
(    ) （5）talk           B. teacher           C. walk

Daniel’s father isn’t angry _______him.
A. to         B. with       C. on

Mary_____ her mother _____the problem.
A. tell; off         B. tells; about        C. telling; for

Is it good _______bad to surf the Net?.
A. and            B. or       C. but

It was _______accident.
A. a             B. an       C./