At the shopping-centre,he didn’t know what＿＿and＿＿with an empty bag.

　　A.to buy； leave B.to be bought； left C.to buy； left D.was to buy； leave

At the shopping-centre,he didn't know what＿＿and＿＿with an empty bag.

　　A.to buy；leave   B.to be bought；left

　　C.to buy；left    D.was to buy；leave