Lucy wasted her time scrolling through social media instead of studying. The antonym of "wasted" is _______

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

The rapid advancement of technology in recent years has revolutionized the way we communicate. The synonym of "rapid" is_______

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.

What is the main idea of the passage?

I started learning English seven years ago.

→I have ________________________ seven years.

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