THE EARLY WAY OF EXCHANGING ONE THING FOR ANOTHER IS CALLEDA. METAL...

3. - DE THI VA DAP AN HSG MON TIENG ANH LOP 9 TINH AN GIANG 20142015
Lớp 9 Tiếng Anh DE THI VA DAP AN HSG MON TIENG ANH LOP 9 TINH AN GIANG 20142015
3. The early way of exchanging one thing for another is calledA. metal melting B. coin- collecting C. banking D. barter.