专题3 非谓语动词和交际用语_7
（北京市海淀区2016届高三下学期期末考试（二模）） Before you hand in your final report, ________ there are no spelling mistakes.A．make sure B．to make sureC．made sureD．making sure
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（北京市海淀区2016届高三下学期期末考试（二模）） Before you hand in your final report, ________ there are no spelling mistakes.A．make sure B．to make sureC．made sureD．making sure