Hefei is a beautiful city, isn’t it?—Yes. There are about two ____ visitors here week.

As a paradise for shoppers, most stores in Hong Kong are _____ even on Christmas Day.

Eating much vegetables is good __________ your health.[ ]

His mother says, “Listen to me __________. Make sure to be __________ with matches.”

Parents always _______ great improvement in study ______their children.