-Whenyouleavetheoffice,youmust_________youhaveclosedallthewindows.-Sur

发布时间:2020-08-04 19:31:38

-When you leave the office, you must _________ you have closed all the windows.-Sure, I will.A.make itB.make outC.make sureD.make up

网友回答

C解析make sure表示“确保”,相当于be sure; make out表示“理解,认出”;make up指“虚构,组成”;make it为“做成,达到”,结合题意,此处应该用make sure。
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