PHILATELIC KNOWLEDGE IS ESPECIALLY IMPORTANT FOR THOSE WHO ______...
19. Philatelic knowledge is especially important for those who _________.
A. intend to spend large amounts for stamps.
B. haven't observed the generally rising prices of stamps.
C. have observed the generally low prices of stamps.
Trang 1/2 - Mã đề: 309
D. have observed the generally rising prices of stamps.