一般过去时描述观察经历 — 英语选择题
题目
Tom 写了一则已结束的自然观察日记片段，其中一处时态有误：
"Last Sunday morning, I notice a woodpecker on the old tree. It pecked the trunk quickly and then fly away. I watched it for a long time."
请判断：日记中时态错误的动词是哪一个？此时态正确的过去式应是什么？
A. notice → noticed
B. pecked → peck
C. fly → flew
D. watched → watch