Please send answer of 3 and 4

Dear Student,
Given below is the answer to your question.

3.
a) This room was not being swept last evening by Usha. intransitive
​​​​​b) Who is being helped in class every time by you? transitive
c) That poor boy was not abused in the market by them. transitive

4.
a) by; from
b) through
c) at; for

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Thank you.