1.Who designed the CD_ROMs.(改为被动语态)

问题描述:

1.Who designed the CD_ROMs.(改为被动语态)
——whom ______the cd-roms_____?

Whom were the CD-ROMs designed by?楼上欠了个最重要的词:by做这类题的方法是,把需要作为被动语态的词按陈述句语序列在句首,再一一加入其他部分,就像上文的句子,先改为:The CD-ROMs were designed by whom?然后再...