【Ithink_____careoftheenvironmentisveryimportantA.takingB.takeC.takesD.took】

问题：【Ithink_____careoftheenvironmentisveryimportantA.takingB.takeC.takesD.took】

答案：↓↓↓

孙建玲的回答：

网友采纳　　肯定是taking啦!　　I(主语)think(谓语)(后面是宾语从句)takingcareoftheenvironment(宾语从句的主语)is(宾语从句的系动词)veryimportant(并与从句的表语).　　作名词用,只能选A!