题干
They have an art lesson _________ 2:00 p. m. _________ Monday.
A：on; on
B：at, at
C：on, at
D：at, on
答案(点此获取答案解析）
D
They have an art lesson _________ 2:00 p. m. _________ Monday.
A：on; on
B：at, at
C：on, at
D：at, on
