问题描述：
—— Mr.Smith this week?——No,he's on holiday A.Has;worked B.Does;work C.Is;working D.Did;work
需要每个选项详细分析
—— _______Mr.Smith________ this week?
——No,he's on holiday
A.Has;worked B.Does;work C.Is;working D.Did;work
需要每个选项详细分析
—— _______Mr.Smith________ this week?
——No,he's on holiday
A.Has;worked B.Does;work C.Is;working D.Did;work
问题解答：
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