AIR ...IS A GLOBAL PROBLEM.A. POLLUTING B. POLLUTED C. POLLUTE D....
52. Air ...is a global problem.
a. polluting b. polluted c. pollute d. pollution
Bạn đang xem 52. - ĐỀ L THI ĐH T ANH 7
52. Air ...is a global problem.
a. polluting b. polluted c. pollute d. pollution