-----IsawBettygotoGrandpaZhang’shomejustnow. --...
来源：语文精选馆 2.92W
问题详情：
-----I saw Betty go to Grandpa Zhang’s home just now.
-----Yes, she is often seen ______ the old man with his housework.
A. help B. to help C. helps D. helped
【回答】
B
知识点：非谓语动词
题型：选择题
