Solution:
This picture cannot be drawn by me. Given sentence is in simple future tense and it is in active voice. Rule : Subject + be + V3 + Other agents

Solution:
His teacher congratulated him for his brilliant success in the recent examination. Given sentence is in form of passive voice and it is in Past Simple Tense. Rule : Subject + V2 + Other agents.

Solution:
Shall we help Motin? The sentence is an interrogative sentence and started with will. The active voice will start with either shall or will. Rule : (Shall/will) + Subject + be + V3 + ?

Solution:
By whom is this mess being created? Given sentence is in present continuous tense and it is in active voice. Rule : Subject + (is /am /are) + being + V3 + Other agents.

Solution:
Who is feeding the child? In such case By whom will change into who. Rule : Who + (Is/am/are) + V-ing + other agents + ?

Solution:
The bridge had been constructed by the men. Given sentence is in past perfect tense and it is in active voice. Rule : Subject + had been + V3 + Other agents

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