英语语法,What does your sister want to be when she grows up这个句子中 grow为什么用grows而不是will grow,has grown,grew 等,涉及了什么语法,是主将从现吗?

What does your mother what does your borther what does your mother do? What does your father work? what does your mother do? what does your family like What time does your school What does your sister do? What does your parents do? what does your grandfather have? what does your grandfather do? What does your father?是什么意思 what time does your firstclassbegininthemorniwhat time does your firstclassbegininthemorning回答 what does your best friend look like what does your mother do?_______________________ What does your mother like?的意思 What does your mother do?怎么回答 do,mother,does,what,your?组成句子