To protect wild animals is our duty.(改为同义句)
_It's__ our duty _to__ _protect__ wild animals.
My sister bought the dictionary last week.(改为同义句)
My sister _has__ _had__ the dictionary for two weeks.
They are trying to stop riding in cars.(对stop riding in cars提问)
_What__ are they trying _to__ _do__?
The workers are pulling down the old building near the street.(该为被动语态)
The old building near the street _is__ _being__ __pulled_ _down__ by yhe workers.
This kind of biycle is made in Shanghai.(该为一般疑问句)
_Is__ this kind of bicycle _made__ _in__ Shanghai?
祝你学习进步,更上一层楼!请记得采纳,谢谢!(*^__^*)