有几道英语题
Change these sentences beginning with "It...to..."
To prepare aplace for the dog is necessary.
To take a walk every day is good for dog .
To keep the dog clean is very important.
To let the dog bark at night is not a good thing.
To give the dog regular(定时的）injections is necessary.
参考答案:Correct answer:
It is necessary to prepare a place for the dog.
It is good to take a walk for dog every day.
It is important to keep the dog clean.
It is not a good thing to let the dog bark at night.
It is necessary to give the dog regular injections.