She asked the pupil ________ still, but they kept ________ out o

She asked the pupil ________ still, but they kept ________ out of class.
A、to sit; to move
B、to sit; moving
C、sit; move
D、sitting; moving
【正确答案】：B
【题目解析】：本题考察固定搭配，ask sb to do sth，keep sb doing sth，因此选B