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.

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

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

My mother doesn’t care how much does the washing machine cost because she is going to buy it anyway

A. doesn’t care

B. does the washing machine cost

C. because

D. to buy