题目内容：

[单选题]I am a middle school student． I (11) at No．6 Middle School．our (12) is big． I (13) 0ur school．(14) begin at eight． We(15) four classes in the morning and two in (16) afternoom We study Chinese，maths， English and (17) lessons． There (18) fifty students in our class． We work (19) ．We study (20) the people．( )11．

A．study

B．work

C． play

D． go