He studies well at school. He usually helps his mother do housework.

A. Because he studies well at school, he usually helps his mother do housework.

B. Although he studies well at school, he usually helps his mother do housework.

C. He neither studies well at school nor usually helps his mother do housework.

D. He both studies well at school and usually helps his mother do housework.

Bài tập Trắc nghiệm Tiếng Anh 12 - Unit 9: Choosing a career (Writing)