I WILL SIT AN EXAM ON FRIDAY 13TH, WHEN IS BELIEVED TO BE ONE...

Câu 21. I will sit an exam on Friday 13

th

, when is believed to be one of the worst days in this May. A B C D Choose the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.