Dave's father went to bed after he came back home last night．（改为同义句）
Dave's father go to bed he came back home last night．
Steve left his hometown five years ago．（改为同义句）
Steve away from his hometown for five years．
She will go climbing with me next week．（改为否定句）
She go climbing with me next week．
He cut the watermelon into four pieces．（改为一般疑问句）
he the watermelon into four pieces？
Both Lucy and May can speak Japanese very well．（变成否定句）
Lucy May can speak Japanese very well．
These flowers are very sweet．（改为感叹句）
flowers they are!
Dave was making a model plane in the classroom at that time．（对划线部分提问）
Dave making a model plane at that time？
Li Lei does the housework every day．（改为否定句）
Li Lei the housework every day．
He put off the plan till next week. （改为一般疑问句）
he off the plan till next week？
The Blacks got married thirty years ago. （改为同义句）
The Blacks have for thirty years.
We often swim in the river．（用now 改成现在进行时态）
We in the river now．
The local government will cancel the project becauset it may be harmful to the environment．（改写句子，句意不变）
The project will by the local government because it may be harmful to the environment．
They will study abroad after they finish high school． （改为同义句）
They won't study abroad they high school．
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