WhenIgotbackhomeIsawamessagepinnedtothedoor,

问题详情：

 When I got back home I saw a message pinned to the door, ______ “Sorry to miss you; will call later.”

A. read                    B. reads                  C. to read             D. reading     

【回答】

D

知识点：非谓语动词

题型：选择题