几道英语题目……请求帮助！！！高手！

1.He bought __ blender on __ sale in that shop.
A.the;the B.a;the C./;the D.a;/
2.-Mum,I want __ of these two coat.
-You can only buy one of them.
A.one B.all C.some D.both
3.The doctor says it is necessary __.
A.to rest B.doing exercise C.eat healthy food D.takes some medicine
4.Mother can hardly belive the news,__?
A.doesn't she B.can she C.can't she D.does she

翻译
1.He told them that the pieces of paper were maps and were probably 2000years old.
2.They have the names of the animals they look like.
3.如果我有时间，我就和你一起去科技中心。（if）
4.由于天气不好，他们决定不去那里了。（because of）

句式转换
1.Before people went into space,animals did.(改为同义句)
Animals ____________________.
2.The secomd monkey to go into space was named Enos.(改为同义句)
We called _____________________.
3.His trip lasted over three hours!(对"over three hours"部分进行提问）
4.When the spaceship was opended,

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