Who gave you this pen? বাক্যের Passive form -----
A
By whom were you got this pen?
B
By whom were you given this pen?
C
By whom was you given this pen?
D
By whom have you given this pen?
Correct Answer: By whom were you given this pen?
Who যুক্ত interogative sentence কে passive করার সময় By whom + be verb + subject + vpp + preposition + object .