According to a recent U.S. survey, children spent up to 25 hours a week ______ TV.
. It is what you do rather than what you say____________really matters.
. —Must I turn off the gas after cooking? —Of course! You can never be__________careful with that.
. ____________apple fell from the tree and hit him on_____________head.
. A fire broke out in a commercial mall unexpectedly the customers and the persons working there fleeing for safety
. To greatly raise people’s living conditions, _______.