Jane needn't get up early ______ every Sunday morning. A. in B. on C.at D. /A. in B. on C. at D. /选哪个,请说明原因.谢谢!

Jane needn't get up early ______ every Sunday morning. A. in B. on C.at D. /A. in B. on C. at D. /选哪个,请说明原因.谢谢!
Jane needn't get up early ______ every Sunday morning. A. in B. on C.at D. /
A. in B. on C. at D. /
选哪个,请说明原因.谢谢!

Jane needn't get up early ______ every Sunday morning. A. in B. on C.at D. /A. in B. on C. at D. /选哪个,请说明原因.谢谢!
答案：D
名词前面用every,this,that,last,next等修饰时,不要加介词,所以正确答案是D.

C 在具体的某一天早晨用介词on

in
in the morning在早上，而且是泛指每个早上，具体的要on