Problem: Continue the following story.

Buying a new phone was inexpensive for Betty but not for Patricia because 
Here's how I want to continue it: Betty was wealthy.

Problem: Continue the following story.

The doctor tried to use the medicine on the snake bite but the 
Here's how I want to continue it: medicine was too weak.

Problem: Continue the following story.

Cynthia was keen to improve the look of the house whereas Christine did not. 
Here's how I want to continue it:
Christine thought the house was beautiful as it was.