There is _________ thing as a free lunch.

He said it was this classroom _______ he found his lost watch and _____ he would take good care of it from then on.

Fierce as they are faced with pressure, the students remain ________ and try hard to achieve their goals. [ ]

Is your favorite subject Math–Yes, I am good ___it.

When shall we start—Let’s _____ the time for the trip. What about 8:30Is that all right