how many cars did the wokers in this factory make in 2004?把它改为被动语态
问题描述：
how many cars did the wokers in this factory make in 2004?把它改为被动语态
答
how many cars were made in this factory in 2004?
答
how many cars were made (by the workes )in this factory in 2004?
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How many cars have been made by the workers in this factory in 2004?
答
How many cars were made (by the workers) in this factory in 2004?
答
How many cars were made by the workers in this factory in 2004?
答
How many cars were made by the workers in the factory ?