求詳解1.She ______her mother’s work since she was admitted into

題目：

求詳解
1.She ______her mother’s work since she was admitted into hospital.
A.is doing B.has been doing C.has done D.has been done
2.Only when you have obtained sufficient data______come to a sound conclusion.
A.can you B.you can C.would you D.you would

解答：

B 現在完成時態 是在母親住院之後一直發生到現在並且一直發生下去 這種情況用現在完成時
A only+時間狀語+倒裝句 記住這個句型,這是倒裝的一種