According to the passage, natural evolutionary change is different from changes caused by humans in that changes caused by humans _______.

Your grandfather was a millionaire, ______?

His friends never forgave his betrayal.

She ______ to be the best singer

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 question.

He was fascinated by the __________ car at the exhibition.

______ all the homework, I went to bed.

Dogs make very _______ pets. They’ll always stay by your side

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 question.

Don’t worry! Everything seems to be______

It is reported that humans are the main reason for most species' declines and habitat _______ and degradation are the leading threats.

When Jack _______ me, I _______ a letter.

With which of the following statements would the author be most likely to agree?

But for the heavy rain, the picnic wouldn’t have been canceled.