Turn off the lights when you leave a room用动名词做主语表达

题目

Turn off the lights when you leave a room用动名词做主语表达
don‘t use paper towels or napkins用形式主语表达

答案

Turn off the lights when you leave a room用动名词做主语表达leaving a room,turn off the lights.don‘t use paper towels or napkins用形式主语表达It is not allowed to use paper towels or napkins用形式主语...