I turned off the gas,opened all the windows,and then went out of the house.这句话里opened为什么不用opening?中间有逗号没有连词不是非谓语吗?

The gas is off I turned off the gas,opened all the windows,and then went out of the house.这句话里opened为什么不用opening?中间有逗号没有连词不是非谓语吗? He was _______ right when he turned off the gas at that moment1 exactly 2 absolutely 3 precisely 4 increasingly Sorry,I'm late.I ---the alarm clock and gone back to sleep againA might have turned off B should have turned off C could have turned off D need have turned off switch off the gas fany 翻译 Switch off the gas 翻译 急 switch off the gas fany 翻译 My parents always remind me to make sure the gas is turned off after a bath,which would _____danger.A.otherwiseB.meanwhileC.somehowD.furthermore I ____ the radio before I went out yesterday.A.turn on B.turned on C.turn off D.turned off i don't know if she has turned off the light.为什么要使用现在完成时 “I’m afraid it _______ (need) mending”,Mrs.White turned off the TV. I could neither wash nor sh____ since the water was turned off.填什么? I can do the dishes.Remember to （ ） 1、switch off the gas 2、rinse off the detergent 3、pick out3、pick out the batteries I can get off the subway or bus one stop away from my destination,so we could save some gas. I closed the window and turned off the light,and then I left the room.(保持句意）______I closed the window and turned off the light.这是8B的YLE Test9的一道题 There are six lights in the classroom All of them are turned on If I turned off two then how many lights are there in the classroom yet ? we are late,so the plane__without us A.took off B.turned off C.turned down switch remember off to gas the；连词成句