Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
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. It was impossible for me to do my homework although my mother helped me with the washing-up
C. I could not help my mother with the washing-up until I finished my homework
D. I could not do my homework because I had to help my mother with the washing-up
Đáp án A
Dịch câu đề: Tôi phải làm bài tập. Tôi không thể giúp mẹ giặt giũ
Đáp án đúng là A: Bởi vì tôi bận làm bài tập nên tôi không thể giúp mẹ giặt giũ
Đáp án B, C sai nghĩa.
Đáp án D sai thứ tự sự việc