2013
高考英语二轮（单项选择）能力提升演练（07）及答案 ⅰ.单项填空 1．(2012•青岛统一质量检测)__________ you turn off all the lights when you leave the classroom. a．making sure b．to make sure c．being sure d．make sure 解析：选d。考查非谓语动词。句意：当你离开教室时务必要关掉所有的灯。主句是一个祈使句，故d项正确。 2．(2012•青岛市第二次统一检测)the climate conference was attended by 11,000 people，__________ it the largest un gathering ever held. a．making b．to make
