The problem with seeing famous tourist attractions is the steady＿of people all trying to see the place at the same time, so I doubt whether it is worth it.

The explorers were told to ________ themselves with everything they would need for the voyage.

 In much of the animal world, night is the time ______ for sleep—pure and simple.

.---- My grandfather walks five miles every morning.-----Really? No wonder he looks so ______.

I was once ashamed to admit my weakness, but now I have no such feeling and I________myself much discomfort.