Problem: How does the sentence end?

Amy pointed out the pleiades star cluster to Megan because 
Answer: Megan was new to astronomy.

Problem: How does the sentence end?

It was recommended that Amy seek help before Patricia has had enough, because 
Answer: Amy has some real problems.

Problem: How does the sentence end?

Emily admired Amy's smooth and clear skin, so 
Answer: Amy explained which beauty products she used.

Problem: How does the sentence end?

Laura trained as a nurse, however Natalie trained as an architect. 
Answer:
Natalie found the accident victims' vital signs with great difficulty.