Use the correct tense / forms of the verbs in brackets:

Please be quiet. I (work)

Choose the word whose underlined part differs from the other three in pronunciation in the following question

Choose the word whose underlined part differs from the other three in pronunciation in the following question

Choose the answer that differs from the other three in the position of primary stress in the following question.

Choose the answer that differs from the other three in the position of primary stress in the following question.

Choose the letter A, B, C, or D to show the underlined part that needs correction

Species become extinct or endangerment for a number of reasons, but the primary cause is the destruction of habitat by human activities.

Choose the letter A, B, C, or D to show the underlined part that needs correction

The number of rare animals are decreasing so rapidly that they are in danger of becoming extinct.

Choose the letter A, B, C, or D to show the underlined part that needs correction

Ernest Hemingway, he is seen as one of the greatest 20^th century American novelists, served as an ambulance driver during World War I.