She couldn't come to class because of her illness. => Since
She couldn't come to class because of her illness.
=> Since _______________.
Lời giải:
Đáp án: Since she was ill, she couldn't come to class.
Giải thích: Since + S + V: bởi vì
Dịch: Vì cô ấy bị ốm, cô ấy không thể đến lớp.