Did not laugh at the lame man. The passive form of this sentence is--
Let not the lame man be laughed at.
You should not laugh at the lame man .
The lame man not be laughed at.
The lame man is not laughed at.
Choose the correct sentence.
A few of the three boys got a prize
Each of the three boys got a prize
Every of the three boys got a prize
All of the three boys got a prize