---A:________ should I get my sister?
---B:I believe flowers are great gifts.
---A:Which animal is ________ in your country?
---B:Dogs. Most people like dogs very much.
---A:What's wrong with you? You look so worried.
---B:I want to get my mom a ________ gift, but I don't have any ideas.
---I fell off my bike and hurt myself yesterday.
---________.You’d better be more careful.
--I have something to tell you.(改为否定句)
--I have________to tell you.
--Kitty has a piano lesson every weekend.(改为否定句)
--Kitty________a piano lesson every weekend.
--- How far is it from your home to school?
--- It's two ________.
--- ________ did you start to play football?
--- I started to play football when I was six.
---Would your sister go to Hainan this summer?
---If I don’t go, ________.