[Q]: How does the sentence end?

The boss did not attend the meeting but the secretary did because the 

[A]: boss was engaged.


[Q]: How does the sentence end?

The dog goes to the bathroom outdoors, but not indoors, because 

[A]: indoors is the wrong place to go.


[Q]: How does the sentence end?

The puppy had fleas, so they decided to try flea shampoo before a flea comb, because the 

[A]:
shampoo seemed easier.