For personal use only in study and research; not for commercial use语法综合测试题一、 按要求写出下列各词的不同形式(15分):book(复数) happy(副词) big(比较级) I(名词性物主代词) he(形容词性物主代词) good(副词) us(主格) quickly(形容词) heaviest(原级) potato(复数) interesting(比较级) she(宾格) come(动词-ing形式) read(过去式) carry(第三人称单数) 二、 单项选择(50分):( )1.We have some but we need some .A. tomatos ; potatos