Teachers in modern classrooms are ______ because their main task is to set goals and organize the learning process accordingly.

Mark the letter A, B, C, or D to indicate the word whose main stress position is placed differently from that of the others in each group.

One of the main reasons why teens have bad eating habits are their busy schedules.

There has been a ______ change in our lifestyle since the introduction of Western culture.

In spite of being tired, Minh stayed up late to finish his homework.

Mark the letter A, B, C, or D to indicate the word whose underlined part is pronounced differently from that of the others in each group.

Susan was _______ when she heard that she won the first prize in the contest.