把下列句子变成被动语态 They have created a very practical system． A very practical system ．题目和参考答案——青夏教育精英家教网——

题目内容

把下列句子变成被动语态

They have created a very practical system．

A very practical system ________　________　________．

答案：has,been,created

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把下列句子变成被动语态

1. We will discuss the problem tomorrow.

2. He will paint his house next week.

3. They will pay more to the athletes.

4. Beijing will host the 29th Olympic Games in the year 2008.

5. They will finish the job in three hours.

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