can your tell me _____ you can come to my birthday party on friday or not.A.IF B.that C.when D.whether

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can your tell me _____ you can come to my birthday party on friday or not.
A.IF B.that C.when D.whether

D
whether...or not
是否

A. If
请采纳,谢谢!

D

D
whether or ont 是否的意思

应该是D
whether or not ...

D.whether