被动语态变主动语态
问题描述：
被动语态变主动语态
spanish is spoken in south America(people)
the homework must be finishhed(the students）
All the new worlds mustbe looked up in a dictionary(we)
has john's room been cleanedalready?(john's sister)
a big cake was given to linda by her friendfor her birthday
this song is often sung now(many children)
we are being taught how to use the newmachine (the worker)
答
People in south America speak spanish.The students must finish the homework .We must look up all the new worlds in a dictionary.John's sister has cleaned john's room already.Linda got a big cake by he...