I had to do my homework. I could not help my mother with the washing-up

Câu hỏi :

I had to do my homework. I could not help my mother with the washing-up.

A. Because I was busy doing my homework, I could not help my mother with the washing-up.

B. I could not help my mother with the washing-up until I finished my homework.

C. It was impossible for me to do my homework although my mother helped me with the washing-up.

D. I could not do my homework because I had to help my mother with the washing-up.

* Đáp án

* Hướng dẫn giải

Chọn đáp án A

Giải thích : Dịch đề bài ta thấy hai câu có quan hệ nguyên nhân – kết quả: Tôi phải làm bài tập – tôi không thể giúp mẹ giặt đồ.
Because + mệnh đề: bởi vì

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