we went to the library yeaterday afternoon (went to the library 画线,提问)
问题描述：
we went to the library yeaterday afternoon (went to the library 画线,提问)
we went to the library yeaterday afternoon (the library 画线,提问）
he went to the mountains last sunday (he画线,提问）
jack did some reading this morning ( this morning 画线,提问)
she bought a pair of glasses last week (a pair of glasses 画线,提问)
there was clean water in the river last year.(一般疑问句）
we were at school last saturday(否定句）
答
保证准确率!
What did you do yesterday afternoon?
Where did you go yesterday afternoon?
Who went to the mountain last Sunday?
When did Jack do some reading?
What did she buy last week?
Was there clean water in the river last year?
We weren't at school last Saturday.
weren't = were not