a). Change the following sentence into passive form:
1.We can not exchange articles which customers have bought during the sale.
---> Articles which have been bought by customers during the sale can not be exchanged.
2.It is high time someone told him to stop behaving like a child.
---> It is high time he was told to stop behaving like a kid.
3.Why did no one inform me of the change of plan?
---> Why wasn't I informed of the change of plan?
4.Men with slide rules used to do these calculations, now a computer does them.
---> These calculations used to be done by men, now they are done by computer.
b).Correct the mistake:
5.Different kinds of newspapers are arranging on the shelves.
Correct: arranged.
6.The novel writing by Mark Twain attracts a lot of children.
Correct: wirtten.
7.Thank you very much for your letter, who came yesterday.
Correct: which.
8.There are a little activities that we can do after the meetting.
Correct: few.
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