—Why did you leave the water running in the sink? —My goodness! I guess I ____ to turn off the tap.
You'd better make a mark _____ you have any questions.
I like ______ of the two stories, for this story is _____ than that one.
Our English teacher _____ by the teachers and students.
Only a fool enjoys _____ in public.
_____ at the news that I didn't know what to say to comfort her.