对画线部分提问 she has been working for 2 hours for 2 hours 画线

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对画线部分提问 she has been working for 2 hours for 2 hours 画线

对画线部分提问 she has been working for 2 hours for 2 hours 画线
对画线部分提问 she has been working for 2 hours for 2 hours 画线

对画线部分提问 she has been working for 2 hours for 2 hours 画线
How long has she been working?

How long has she been working ?

How long has she been working?

How long has she been doing this work