WE CAN’T SWIM IN THE RIVER. THERE IS TRASH ... ON THE WATER SURFACE...

5. - DE THI HSG MON ANH DE 1DAP AN
Tiếng Anh DE THI HSG MON ANH DE 1DAP AN
5. We can’t swim in the river. There is trash ... on the water surface.a. swimming b. floating c. diving d. bathing