Problem: How does the sentence end?

A greeting card had been sent from Patricia to Betty because
Answer: Patricia is a thoughtful friend.

Problem: How does the sentence end?

Angela is choosing a skin toner and needs an advice from Monica, because
Answer: Monica has a lot of experience.

Problem: How does the sentence end?

Wal-Mart had milk on sale so Jeffrey bought an extra gallon for Dennis, then
Answer: Dennis drove to pick up the milk.

Problem: How does the sentence end?

Jason left the roofing of his house to be applied by Hunter as
Answer:
Jason lacked professional experience.