2) A ticket (sell, sells) for twenty dollars.

3) A number of bees (is, are) building a nest in my ceiling.

4) We (want, wants) to help our friend.

5) The number of accidents (decrease, decreases) every year.

6) Dominic (drink, drinks) soda in the back seat of the car.

7) Many bombs (explode, explodes) as the war continues.

8) Several insects (were, was) in the kitchen.

9) The number of murders (has, have) gone down now.

10) Donald and John (lead, leads) the team into the finals.

11) Kenneth (share, shares) his money with his little sister.

12) A number of arguments (break, breaks) out whenever the men meet up.