I feel tired and sleepy.— Why not stop ______ yourself?

Margie shows a very positive attitude ____ her work.

What do you think of our plan?—I think it’s reasonable. But _____ Bob, what we did is a waste of time.[ ]

There was a big fire in the street last night, but the firemen _______ within twenty minutes.

Can you tell ___ the way to the People’s Hospital(人民医院)?