将下列主动句改为被动句：1.Theworkerscouldnotfindthemanageranywhereinthefactory.2.Thearmyengineersandsoildershavebuiltabridgeovertheriver.3.Youmustcleanyourwatchonceayear.4.XiaoWangcoulddothejob5.Icannot

Question

将下列主动句改为被动句：1.The workers could not find the man
ager anywhere in the factory.
2.The army engineers and soilders have built a bridge over the river.
3.You must clean your watch once a year.
4.Xiao Wang could do the job
5.I can not find mydictionary.Someone has taken it.

Answer 1

The manager could not be found anywhere in the factory by the workers.

A bridge has been built over the river by the army engineers and soldiers.

Your watch must be cleaned by yourself once a year.

The job could be done by Xiao Wang.

My dictionary can not be found.It has been taken.