There are some apples on the tree.改否定句：There are not some apples on the tree.
改一般疑问句并作否定回答：Are there some apples on the tree? No,there aren’t.
I was happy yesterday.改否定句：I was not happy yesterday .
改一般疑问句并作否定回答：Was you happy yesterday? No,i wasn’t.
I like playing violin.改否定句：I don’t like playing violin.
改一般疑问句并作肯定回答：Do you like playing violin.? Yes,i do.
He watches tv at night.改否定句：He doesn’t watche Tv at night.
改一般一般疑问句并作否定回答：Does he watche TV at night? No,he doesn’t
He read books.改否定句：He didn’t read books.
改一般疑问句并作否定回答：Did he read books? No,he didn’t
I went skiing last weekend.该否定句：I didn’t go skiing last weekend.
改一般疑问句并作肯定回答：Did you go skiing last weekend? Yes,i did.
We are eating lunch.改否定句：We aren’t eating lunch.
改一般疑问句并作否定回答：Are you eating lunch? No,we aren’t.
They are eating the honey.改否定句：They aren’t eating the honey.
改一般疑问句并作否定回答：Are they eating the honey? No,they aren’t.
He is playing chess.该否定句：He isn’t playing chess.
改一般疑问句并作否定回答：Is he playing chess? No,he isnt.
Her birthday is in June.改否定句：Her birthday isn’t in June.
改一般疑问句并作否定回答：Is her birthday in June? No,it isnt
