567.Jack was still very calm,_______ the quarrel with the boss,and greeted every person he met on the way back to his office.
A.in spite of
B.due to
C.as a result of
D.because of
568.Despite what I have been told about the native people's attitude towards strangers,______ did I come across any rudeness.
A.in no time
B.at no time
C.in any time
D.at any time