PHILATELIC KNOWLEDGE IS ESPECIALLY IMPORTANT FOR THOSE WHO ______...

11. - File thứ 1: Anh 11 giua ky 2
Tiếng Anh File thứ 1: Anh 11 giua ky 2

11. Philatelic knowledge is especially important for those who _________.

A. have observed the generally rising prices of stamps.

B. have observed the generally low prices of stamps.

C. haven't observed the generally rising prices of stamps.

D. intend to spend large amounts for stamps.