–______ keep water running when you are brushing your teeth or washing your hands, Jack.– OK. I know we must save every drop(滴) of water.A. Why not B. Please C. Don’t
“Hello,Kate.Nicetomeetyou.”“________.”
Theboyisfourteen________.
Iamastudent________IamChinese.
_______isTom'sfriendfrom? HeisfromShanghai.
________areBob'sgrandparentsandtheyareverynice.