a question
Look!What _____ over there?A.does he doB.do they doC.are the twins doingD.is your father and mother doing选什么,为什么呀?
参考答案:选C。
因为根据情景应该用现在进行时,排除A、B。
D的语法错误,应该用复数。
Look!What _____ over there?A.does he doB.do they doC.are the twins doingD.is your father and mother doing选什么,为什么呀?
参考答案:选C。
因为根据情景应该用现在进行时,排除A、B。
D的语法错误,应该用复数。