变被动语态：1.They are sending me to the hospital.2.He has seen the coast ahead.3.She explained the words to us.4.The girl wraps articles every day.

The boy was taken to the hospital by them because he had a cold. 变被动语态时 从句不用发生变化 the boy was taken to the hospital by

1.I is being sent to the hospital.
2.The coast has been seen ahead.
3.the words were explained to us by her.
4.articles are wrapped by the girl every day,

i am being sent to the hospital by them.
the coast ahead has been seen by him
the words was explained to us by her
articles are wrapped by the girl every day

I have been send to the hospital by them
the words had been explained by she

1 I am being sent to the hospital by them.
2 The coast has been seen ahead by him.
3 The words were explained to us by her.
4 Articles are wrapped by the girl every day.