1．(2011·重庆调研)Any help from you will be greatly appreciated.Please give me a reply at your earliest ________.
A．interruption B．instruction
C．consideration D．convenience
解析：考查名词辨析。这里表示“请在你方便的时候尽早给我回复”，at your earliest convenience 是固定表达，表示“在你方便的时候请尽早”，符合语境。interruption打断；instruction 指导，指示；consideration 考虑。
答案：D
