Which expression is correct?

1.They elected him chairman. Its passive form is :

2.Choose the correct sentence :

3.A decade ¾ since the discovery of Leprosy vaccine. The right option for the gap is:

4.From your point of view, which sentence is incorrect?

5.Salam is late for office on most days. In other words, he is ___ late for office.

6.Who is a netizen?

7.We are looking forward to ¾ soon. The right expression for the gap is:

8.He is an innovative teacher. Here '$innovative^{\prime}$ means:

9.He went mad. This verb is :

10.Which one is the correct spelling?

11.He said, “where are my glasses?” Its indirect form is:

12.The beggar in front of the gate looked very hungry. Functionally, the underlined phrase is a/an :