Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions.

1. A. pollution  B. transport C. waste D. plastic

2. A. child B. machine C. chocolate D. chair

3. A. disappear B. planets C. Mars D. Venus

4. A. game
  B. faster
  C. safety
  D. cake
5. A. great
  B. waste
  C. surface
  D. chase