—Tommy, you can never let others know what I have told you today.—Don’t worry. I will keep the ______.

As young adults, it is our ____________to help the disabled.

 At the foot of the hill you could hear nothing but the ________ of the running water.

—Tom doesn’t like to have long hair.—Yeah. His hair is shorter than    .

You eat too much _______, so you are heavy .