Which one is singular?

1.What is the synonym of the word '$Project^{\prime}$?

2.What is the opposite of 'Yellow $Dog^{\prime}$?

3.Mention the passive voice of 'His conduct pleases $me^{\prime}.$

4.The word admire means-

5.I know nothing regarding this matter. Here "regarding is a $\ldots\ldots$

6.Which pair of prepositions will be appropriate in the gaps : John is senior $\ldots\ldots me \ldots... 4$ years.

7.What is the synonym of the word '$Tenacity^{\prime}$?

8.He persists $\ldots\ldots.. a$ noise.

9.I'm sure I locked the door. I clearly remember $\ldots\ldots\ldots.it.$

10.Choose the word that is most nearly opposite in meaning to the word "QUELL" :

11.Choose the appropriate preposition : "I wondered what the bill would come ¾."

12.The sentence "As he is ill and the doctor has advised him to take rest, he cannot come to welcome you." is an example of: