There _____ calories in water.

______ is conveyed here to children is that reading is one of life’s greatest treats.

When did the computer crash?—This morning，while I ________ the reading materials downloaded from some websites.(2012·福建)

than carry out the project by itself, the company planned to _________ with other potential cooperators.

Once ________ of some unnecessary worries, you’ll find your life so peaceful and colorful.