they make the bikes in the factory改被动语态用过去时态还是一般现在时态

问题描述:

they make the bikes in the factory改被动语态用过去时态还是一般现在时态

一般现在时吧,因为要是过去时就题目就应该是they made the bikes

The bikes are made in the factory by them .

The bikes are made by them in the factory.
此句子用一般现在时态就可以了,说明事实.