youturnoffthelightsbeforeyouleaveschool.A.MakingsurelyB.MakesureC.TomakesureD.Makesurely

Question

_____ you turn off the lights before you leave school.
A.Making surely B.Make sure C.To make sure D.Make surely

Answer 1

B.Make sure
表请求的祈使句,动词原形开头.
make sure 确保
再如：
he made sure that his sons were well educated.
他确保他的儿子们都受到了良好的教育.