Judging from _______ number of seats, ______ number of people were present at the meeting．

A.a; the

B.the; a

C.a; a

D.the; the

答案及解析： B

本题的含义是从座位的数量上来看，有许多人会出席会议，the number of表示……的数目，a number of表示很多的意思，故本题选B。