Mary ( )breakfast at seven o'clock.Mary ( )breakfast at seven o'clock.括号里应该填什么,为什么?A; is having B;has C.have我觉得应该选B,has.但正确答案是A.is having .有人能告诉我为什么要先A吗?

Where's Mary?She's —breakfast now.A at B inC on D after Mary usually has cakes for breakfast at (7 o'clock) .(对括号部分提问） 4.Mary has her breakfast at home every day.(对划线部分提问)____________ _________________4.Mary has her breakfast at home every day.(对划线部分提问)__________________ _______________ at breakfast是什么? I eat breakfast at Mary eats breakfast at seven o'clock.对at seven o'clock提问Sott usually does his homework after dinner.对does his homework 提问 at breakfast=for breakfast吗? After a quick breakfast, Mary left in a hurry. After a quick breakfast, Mary ____ ____. he has his breakfast at I ()already ()breakfast at home Breakfast at Tiffany's 歌词 have breakfast at 8:00 “at breakfast”、“in breakfast”、“to breakfast”、“on breakfast” 四者的区别 Mary ( )breakfast at seven o'clock.Mary ( )breakfast at seven o'clock.括号里应该填什么,为什么?A; is having B;has C.have我觉得应该选B,has.但正确答案是A.is having .有人能告诉我为什么要先A吗? at breakfast; at lunch 的搭配对么? Mary likes apples for breakfast.(对apples进行提问)Mary likes apples for breakfast.(对apples进行提问)( ) does Mary ( ) for breakfast? After breakfast,Mary go to school.错在哪里啊? school,after,Mary,goes,breakfast,to连成句是什么kkkkkk