_____ the front door _____, he had to enter the room through the back door.

A．Seen; painted

B．Seeing; painted　　

C．Being seen; being painted

D．Seeing; being painted

FIDIC合同条件下工程费用支付中属于清单以外费用的是（）。

A．工程变更费用

B．索赔费用

C．工程量清单项目费用

D．暂列金额

E．材料预付款