试题详情
—Could you come to the party this weekend?
—I'm afraid I can't join you. I _______ look after my grandma.
- A、used to
- B、have to
- C、prefer to
- D、belong to
知识点
参考答案
采纳过本试题的试卷
—I'm afraid I can't join you. I _______ look after my grandma.