Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they _______ meals.

Will you show me the photo of your family—OK, I’ll __ it here tomorrow.

Remember to save what you ________ on once in a while in case the computer suddenly crashes.[ ]

really makes a difference is people’s attitude．[ ]

Cars play an important role in modern life, but they ______ also cause many problems like air pollution.