7、佳选项,并在答题纸上将该选项标号涂黑。16.Youmust_______yourpapersbeforeyouhandthemin.A.getthroughB.gothroughC.lookthroughD.getalong17.Iwasabouttogoout______itstartedtosnow.A.whileB.whenC.beforeD.after18.It’s helpful to put children in a situation _______they can see themselves differently. A