单项选择①Mary had English class ___ eight ____the morning A.at,o
单项选择
①Mary had English class ___ eight ____the morning A.at,on B.on,on C.at,in D.in,at ②I play sports ___ to hours every day A.at B.for C.in D.after ③I have history_______ the afternoon _____ Monday A.on,in B.on,of C.in,of D.in,on