Complete the sentence with clause.
The book was expensive.

The book was expensive, so I asked the manager for a discount, and was given a coupon for 50% off.

Explanation:

This is a Compund-Complex sentence so the subordinate clause would be “The book was expensive” and then have two independent clauses which are “So I asked the manager for a discount, and was given a coupon for 50% off”

with whom will you be coming to the party? this is written correctly.

i think the literacy device is "it's frozen head"