Which one is correct?

1.This passage is about ¾ .

2.Airplanes have now "mastered" the sound barrier that is to say, they have¾.

3.How wonderful! He ___ promoted.

4.The company came__ strong criticism from the public.

5.He cut __a slice of the cake for me.

6.When started raining, she made a dish ___ the relatives.

7.After the invention of the computers,

8.The Committee __ the resolution unanimously.

9.Fill in the blank with the appropriate words/word :

10.The word downtrodden suggests people who are__

11.To pay lip-service to someone is to —.

12.Choose the correct sentence.