To our relief, Xiaodan as well as the other children who ______ no parents ______ good care of in the welfare institute.A.have; is being takenB.has; are being takenC.has; is being takenD.have; are being taken
参考答案：
A解析本题考查主谓一致。who引导的是定语从句，现行词是children，所以定语从句的谓语动词用复数have. 第二个横线处要填的是主句的谓语动词。主句的主语是Xiaodan as well as the other children谓语动词要与Xiaodan一直，所以谓语动用单数。所以选A. 这里要用被动语态。
