Fill in each blank with the correct form of the words in the brackets.
29. If we go on littering, the environment will become _______ polluted. (serious)
30. The main threat to the ________ of these creatures comes from their loss of habitat. (survive)
31. Ao Dai is the _______ dress of Vietnamese women. (tradition)
32. You need to have a lot of _______ to play this kind of sport. (strong)
29/ seriously
30/ survival
31/ traditional
32/ strength
29. seriously
30. survival
31. traditional
32. strength
29. seriously
30. survival
31. traditional
32. strength
29- seriously
30- survival
31- traditional
32- strength
