问题
选择题
My best friend Lily is _________ with her mother and _________ her with housework.[ ]
A. stays; helps
B. staying helping
C. stay, help
D. staying, helps
答案
答案：B
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My best friend Lily is _________ with her mother and _________ her with housework.[ ]
A. stays; helps
B. staying helping
C. stay, help
D. staying, helps
答案：B