shanghai-----(be)a small town hundreds of year ago.

问题描述:

shanghai-----(be)a small town hundreds of year ago.

shanghai was a small town hundreds of year ago.

was (hundreds of yesr ago 是解题的关键)

hundreds of year ago是一般过去时的时间状语
所以要用was

was
因为是 一般过去时

was
在这里was 是曾经的意思
几百年前上海曾经是个小镇.
意味着它现在不是了

was