请选择ABC5P,\/L4W0u2F-n+_0w It’s time __________ school. Let’s _________ .7A9D.?1s/i:]4`
A. to; go7A9D.?1s/i:]4`
B. for; go7A9D.?1s/i:]4`
C. for; to go7A9D.?1s/i:]4`