l saw a big dog yesterday.(对a big dog进行提问)

问题描述:

l saw a big dog yesterday.(对a big dog进行提问)

What did you see yesterday?
答案看完了,就采纳一个呗!拜托啦!嘿嘿
百度答题人伤不起呀~~~ %>_还有不明白的,欢迎继续追问!

What did you see yesterday?