QUESTIONS 76 - 80. MARK THE LETTER A, B, C, OR D TO INDICATE THE BEST...

25. - 2 DE THI THU DAI HOC CAO DANG NAM HOC 20092010 MONTHI TIENG ANH VA DAP AN
Tiếng Anh 2 DE THI THU DAI HOC CAO DANG NAM HOC 20092010 MONTHI TIENG ANH VA DAP AN
25. Why can’t we swim in the seas and the rivers?A. because they are too dirty B. because they are too healthyC. because they are too harmful D. because there is too much smoke