[Q]: How does the sentence end?

Kenneth tries to always think positive compared to Michael because 

[A]: Kenneth is a very optimistic person.


[Q]: How does the sentence end?

Billy replaced the plastic water cup with a glass one so he could see what he was drinking, the 

[A]: plastic was obscure.


[Q]: How does the sentence end?

Joey was careful when he passed by the tack but he managed to scratch himself on the nail because the 

[A]:
tack was dull.