Choose the best answer to complete the blank in each of the following sentences.

If I feel too excited to sleep, I ________ reading one of our reports.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that has the underlined part pronounced differently from the others.

Mark the letter A, B, C or D on your answer sheet to choose the word whose underlined part is pronounced differently from the rest.

Choose the word that has the underlined part pronounced differently from the others.

Find the word whose main stress is different from the others.

Choose the word whose stress is put differently from that of the others.

Choose the best answer to each of the following questions.

We should develop such ____ sources of energy as solar energy and nuclear energy.

Choose the best answer to each of the following questions.

 Fossil fuels which are non-renewable pollute the air and cause air ______.