问题补充:
单选题Asavolunteer,GuoMingyi______always_____helpotherswhoareintrouble.A.is ;seenB.is ; seen toC.is ; seeD.is ;saw
答案:
B解析此题考查固定结构see sb do sth表示看到某人经常做某事。变为被动语态时的句型结构为be seen to do sth。
时间:2021-10-14 03:34:33
单选题Asavolunteer,GuoMingyi______always_____helpotherswhoareintrouble.A.is ;seenB.is ; seen toC.is ; seeD.is ;saw
B解析此题考查固定结构see sb do sth表示看到某人经常做某事。变为被动语态时的句型结构为be seen to do sth。