What she did there__ students' eyes.A.open B.open up C.opened up答案选opened up 我想请问下为什么用过去式呢这里是做什么语法来解释啊?

What she did there__ students' eyes.A.open B.open up C.opened up答案选opened up 我想请问下为什么用过去式呢这里是做什么语法来解释啊? what did she what did she do? what did she do what did she. What did she what did she do?翻译. dream,did,what,she,about? what did she want.和 what she wanted.一样么? what did she have for breakfast是什么意思? what did she piant yesterday怎样回答 what did she have for dinner? Did the woman get what she wanted? what did she mean___ ___ so early? and what did she have for Did the woman get what she wanted? What did she say?为什么要加did He stayed there__ she came back填什么