RECYCLING - TEST 3I. CHOOSE THE WORD WHOSE MAIN STRESS IS PLACED DIFFE...

30. - BAI TAP TIENG ANH LOP 8 UNIT 10 RECYCLING CO DAP AN SO 3
BAI TAP TIENG ANH LOP 8 UNIT 10 RECYCLING CO DAP AN SO 3
30. What does the word ‘they’ in line 4 refer to?a. cardboard b. newspaperc. high-quality papers d. kinds of paper