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

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

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

A. intend to spend large amounts for stamps.

B. have observed the generally rising prices of stamps.

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

D. have observed the generally low prices of stamps.

II. Circle the underlined part among A, B, C or D that needs correcting.