--What’s wrong with you Eric ? You look tired .--I to prepare for the final exam last n

问题补充：

--What’s wrong with you , Eric ? You look tired .

--I to prepare for the final exam last night .

A. picked up

B. woke up

C. stayed up

D. put up

答案：

A. picked up

B. woke up

(答案→)C. stayed up

D. put up

解析：句意：艾瑞克，你怎么了？你看来很疲倦。昨天晚上我熬夜准备期终考试呢。pick up意为“拾起，捡起，开车接某人”，wake up意为“醒来”，stay up意为“熬夜”，put up意为“悬挂，张贴，搭建”；故选C。