Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

- Mike: “Do you think there will be pilotless planes?” – Joe: “_____”

Question: The word “they” in paragraph 2 refers to _______.

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.

Question: What could be the most suitable title for the passage?

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

The energy _______ from the sun is renewable and environmentally-friendly.

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

Tom denied _______ part in the fighting at school.

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

We truly respected our father and always _______ by his rule.

Question: According to the passage, cellphones are very popular with young people because _______.