Mark the letter A, B, C or D on your answer sheet to indicate the best answer of each following questions.
Tom and May never help at home. The reason is because their mother never asks to.
A. Tom and May never help at home and their mother never asks to.
B. Tom and May never help at home because their mother never asks to.
C. Tom and May never help at home so their mother never asks to.
D. In order not to help at home by Tom and May, their mother never asks.
Đáp án B.