SURFACE MAIL IS --- CHEAPER THAN AIRMAIL.A. MANY B. MUCH C. FARTHE...

19. - DE THI HOC KI 1 ANH 8 TRAC NGHIEM 100%
DE THI HOC KI 1 ANH 8 TRAC NGHIEM 100%
19. Surface mail is --- cheaper than airmail.A. many B. much C. farther D. more