( )7. Mother was always the first one ________ in the morning.为什么选B而不选DA. get up B. to get up C. gets up D. got up

问题描述:

( )7. Mother was always the first one ________ in the morning.
为什么选B而不选DA. get up B. to get up C. gets up D. got up

the first to do sth
第一个去做什么
所以要带to