Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

 He studied hard, ___________ he could pass the exam with flying colors.

Scientists have designed an eco houseboat (7) _______ is a kind of house floating on the sea.

Which can be the best title for the passage?

Mark 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.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Several people suppose that life in the countryside is ____________than the city life.

Mark the letter A BC or D on your answer sheet to indicate the word whose underlined pert differs from the other three in pronunciation in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The 2024 Paris Olympics is one of the world's __________ sports festivals attracting lots of athletes from all countries.