Two students are discussing some measures to protect the environment.

John: "Do you think we should use public transportation to protect our environment?’’

Laura: ‘’______’’

II. Complete the second sentence so that it has the same meaning as the first one, using the word given. Do not change the given words in brackets. You must use NO MORE THAN FIVE WORDS, including the given word.

 87. "It's not worth worrying about the past," She told him. (POINT)

IV. Each of the following sentences has one mistake that needs correction. Underline the mistake. correct it and write your answer in the provided box.

 50. There is some new furnitures in the living room.

III. Rewrite the following sentence with the given words in such way that the second sentence has the same meaning as the first one. Do not change the form of the words in brackets.

92. No messages have come for me, have they? (THERE)

The cost of food has now reached a point where a growing number of people believe that it is far too high and that ____ it ____ will be one of the great challenges of the twenty-fast century.