sarah can plant trees 改为否定句

sarah can plant trees 改为否定句 I must plant more trees 如何改为否定句 we began to plant trees at nine 改为否定句 Can you plant trees?(作否定回答) We can (plant trees) (in the park ) 改否定句 一般疑问句 否定回答 括号提问 I can plant trees.改为一般疑问句 They wanted to plant trees.改为否定句 一般疑问句 并做两种回答 we began to plant trees at nine 改为否定句 为什么呀 she can plant trees 的同义句 I can plant trees改为一般疑问句,为什么不用Can you plant trees?来回答呢? I can plant trees改为一般疑问句,为什么不用Can you plant trees?来回答呢?而是用Ca 连词成句 1.i.in.trees .spring .plant.can