— Sunday morning, they are going to get up early . —That’s good , but I’m going to stay in

— Sunday morning, they are going to get up early .
—That’s good , but I’m going to stay in bed the morning .
A. On , on
B. In, in
C. In , on
D. On, in

A. On , onB. In, in C. In , on(答案→)D. On, in解析：考介词，在星期天的早晨、在星期天，都应该用on,例on Monday/Sunday;在早晨 就用 in，例in the morning/afternoon/evening .

对的，就是这个意思