Determining the mineral content of soil samples is an exacting process; ________ experts must perform detail tests to analyze soil specimens.

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

The composer Verdi has written the opera Aida to celebrate the opening of the Suez Canal, but the opera was not performed until 1871.

It seems that the world record for this event is almost impossible to ________

He has been waiting for this letter for days, and at ________ it has come.

You look exhausted. You ________ in the garden all day.

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 the pronunciation in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicated the word differs from the other three in the position of primary stress in each hof 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.

The new contract sounds good. However, it seems to have some problems.