题目内容
将下列主动语态变成被动语态。
1. We must finish the work in two days.
The work must _____ in two days.
2. Mrs. Green has given Robert a present for Christmas.
Robert _____ a present for Christmas.
3. We have used paper and printing for ages.
Paper and printing _____ for ages.
4. He doesn't think computers can replace books.
He doesn't think books _____ by computers.
5. We have bought some gifts for the poor children.
Some gifts _____ for the poor children.
1. We must finish the work in two days.
The work must _____ in two days.
2. Mrs. Green has given Robert a present for Christmas.
Robert _____ a present for Christmas.
3. We have used paper and printing for ages.
Paper and printing _____ for ages.
4. He doesn't think computers can replace books.
He doesn't think books _____ by computers.
5. We have bought some gifts for the poor children.
Some gifts _____ for the poor children.
1. be finished 2. has been given 3. have been used 4. can be replaced 5. have been bought
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