—May I use your phone? I left mine at home.—. Here it is.A. By all means B. Never mindC. I

问题补充：

—May I use your phone? I left mine at home.

—. Here it is.

A. By all means

B. Never mind

C. It is a pleasure

D. Don mention it

答案：

(答案→)A. By all means

B. Never mind

C. It is a pleasure

D. Don mention it

解析：选A考查情景交际。句意：“我可以用用你的电话吗？我的落在家里了。”“当然可以。给你。”By all means“当然可以”，符合句意。Never mind“没关系”；It is a pleasure“不客气”；Don mention it“不必客气”。