Hãy viết công thức tính diện tích hình thoi theo hai đường chéo.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

"No, I won't go to work at the weekend," said Sally.

A. Sally refused to go to work at the weekend

B. Sally promised to go to work at the weekend

C. Sally apologized for not going to work at the weekend

D. Sally regretted not going to work at the weekend