Sharks sometimes attack people,don't they?怎么回答

Sharks sometimes attack people,don't they?怎么回答 don't sad because of people,they will all die 是谁 They go to bed early,but they don't always go to Young people don't indulge no.什么意思? why don't you do 的肯定回答是什么 She don't believeb me.中哪错了 Don't forget your umbrella.有错吗 It looks t_____.I don't like it.这题怎么做 you ( )from canada ,don't you? 怎么写 They didn't come to school as early as we.怎么翻译? I really don't 愚蠢的英语单词怎么读:" stupid ''