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

 Students have to do some voluntary work at university, _________ ?

Write 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.

It is hard to believe that no one (23) __________ computers a few years ago.

 What is the main idea of the passage?

Write 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.

Write 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 stress in each of the following questions.

Write 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 stress in each of the following questions.

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

 They bought a house __________ has a garden overlooking the sea.