1, He is speaking with his mouthfull of food. (shouldn’t ) - ……………………………………………………………………………………….. 2, Tet is an important festival, so most Vietnamese return home to welcome it. (therefore ) - ……………………………………………………………………………………….. 3, Lan studied hard, but he failed the examination. ( Although) - ………………………………………………………………………………………… 4, Quan ho is the traditional folk song of Bac Ninh, so only this kins of singing is allowed at the Lim Festival. ( Because ) - ……………………………………………………………………………………….. 5, People are travelling along Yen Stream. They can enjoy the beautiful scenery of the area. (While ) - …………………………………………………………………………………………. huhu mình sắp vào học rồi