—__________. He was here a moment ago.

A. It must be Li Ping B. It is Li Ping take

C. Li Ping is D. Li Ping must take

【答案】A

【解析】

试题分析：考查情态动词。句意：谁拿了我的笔？一定是李平，他刚才在这。句意表示肯定的推测用must，而it指问句中提到的who。