Betty taught Maria how to prune her  day lilies because 
OPTIONS:
- Betty was and expert gardener.
- Maria was and expert gardener.
Betty was and expert gardener.

The products that Steven bought were more expensive than those of Leslie, since 
OPTIONS:
- Steven was a wealthy person.
- Leslie was a wealthy person.
Steven was a wealthy person.

Paul set up the microscope and the hand lens for students to view the microorganisms, but the 
OPTIONS:
- lens was the only one powerful enough.
- microscope was the only one powerful enough.
microscope was the only one powerful enough.