Find the area of a regular hexagon if its side is

The transaction ___ subject ____ regulatory approvals.

In the following sentences two words are omitted in each. Find the correct option that consists of the correct pair of the words.  

The sound track gives us the ____________ before the visual cue; it is as if the thunder arrives before the lightning.

Select the most appropriate option to fill in the blank.

People ______ buy our garments always return for ________ because of its feel.

The statue, which was declared as a new ___________ of an antique, was recovered hours before it was scheduled to be shipped to Malaysia.

We are not only afraid of being in the dark; we are also __________ of being kept in the dark.

His wife smelt something ________________ and went to investigate, only to find him in the act of now setting the room on fire.