There are strict (3) ______ for the preparation of school meals, which have to include one (4) ______ of fruit and one of vegetables, as well as meat, a dairy item and starchy food like bread
Giải thích
Đáp án B
Giải thích: portion (tỉ lệ).
Đáp án B
Giải thích: portion (tỉ lệ).