请选择CBA;E9K2H/y.m,R5|6?(d;H It’s seven o’clock in the morning. It’s time __________ school.-h8W5`9p/V-Y:A7j,e'Q
A. in-h8W5`9p/V-Y:A7j,e'Q
B. of-h8W5`9p/V-Y:A7j,e'Q
C. for-h8W5`9p/V-Y:A7j,e'Q