79、Before___the office she always makes sure___the lights.( )A.left, turn offB.leaving, to turn offC.leave, turning offD.to leave, in turning off
參考答案:B
before是介词 后面加动名词。
make sure to do 确信/确保做某事
79、Before___the office she always makes sure___the lights.( )A.left, turn offB.leaving, to turn offC.leave, turning offD.to leave, in turning off
參考答案:B
before是介词 后面加动名词。
make sure to do 确信/确保做某事