According to the passage,the author of the article may agree to which of the following statements? 查看材料
A.
It is appropriate to send your invitation cards three or four days before a dinner party date in U.S.A.
B.
It may be appropriate to send your invitation to your guests three or four days before a dinner party date in some cultures.
C.
It is best for one to make telephone calls at night because it costs much less.
D.
If one is less than 5 minutes late,he has to make a short apology.