题目

将下面的句子改为被动句
The students must hand in their papers immediately
who will look after the child?
do they take good care of the sick?
we should make good use of every minute
they sent for the doctor right after the accident
they had never dreamed of such success before they made the experiment

提问时间：2021-11-25

答案

Their papers must be handed in by the students immediately
The child will looked after by whom?
Does the sick taked care of by them?
Every minute should good used of by us
The doctor been sent for right after the accident by them
Such success never been dreamed by them before the experiment been maded.