There are _________(how many) pairs/groups of verbal communication styles introduced in this Chapter. They are: 1) direct and ____________ styles; 2) __________________ and ___________________styles; 3) _______________, exacting and ________________ styles; 4) p_______________ and c______________ s_______________; 5) i_______________ and a______________ s_______________. When you've finished completing the above blanks, make sure you are quite clear with their Chinese meanings.