问题描述：
＿her home,Mary helps her mother do some housework.A.As soon as she returns B.On arri...
＿her home,Mary helps her mother do some housework.A.As soon as she returns B.On arriving C.After she gets D.Directly she reaches请问选哪个?
＿her home,Mary helps her mother do some housework.A.As soon as she returns B.On arriving C.After she gets D.Directly she reaches请问选哪个?
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