英语语法陈述句包括肯定陈述句和否定陈述句：
肯定陈述句
a) This is a book. (be动词)
b) I can bring some things to school. (情态动词)
c) I want a sweat like this. (实义动词)
d) There’s a computer on my desk. (There be结构)
e) He looks very young. (连系动词)
否定陈述句
a) There isn’t a cat here. (=There’s no cat here.)
b) Kate doesn’t go to No. 4 Middle School. d) Kate can’t find her doll.
c) These aren’t their books. b) They don’t look nice.
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