6. IT’S DIFFICULT TO ……….. THE DIFFERENCE BETWEEN MARGARINE AND BUTTER...

6 . - CHI TIET BAI TAP VA LOI GIAI TRAC NGHIEM TU VUNG 12 BAI TAP TRAC NGHIEM VE TU VUNG
CHI TIET BAI TAP VA LOI GIAI TRAC NGHIEM TU VUNG 12 BAI TAP TRAC NGHIEM VE TU VUNG
6. It’s difficult to ……….. the difference between margarine and butter. A. speak B. tell C. say D. look