Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

An octopus has three hearts to pump blood throughout their body.

It is found that endangered species are often concentrated in areas that are poor and densely populated such as much of Asia and Africa.

A customer is talking to a shop assistant about the sweater he has chosen.

- Customer: “That's nice. Could I try it on?”

- Shop assistant: “________”

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.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.