Today’s scientists have overcome many of the challenges of the depth by using more sophisticated tools.

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 from 47 to 50.

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 from 47 to 50.

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 from 47 to 50.

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 from 47 to 50.

It takes about 365 days and 6 hours for the Earth to ______ the Sun.

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best completes each of the following questions from 45 to 46.

Hoang arrived at the door, asking me to lend him the Maths book.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined and bold part in each of the following questions from 43 to 44.

I am tired of doing a lot of homework, so I stop_______my favourite TV show.

The problem seems not to be _______as we thought.