III. Put the verbs in the blanket into the correct form

1. The pollution water results in the _________ of many aquatic animals and plants. (DIE)

2. My friend and I are going to give a presentation about our ____________________ problems. (ENVIRONMENT)

3. Both Chinese and English are __________________ languages in Vietnam. (OFFICIAL)

4. People should become familiar with the guidelines for ____________ because natural disasters can force them to leave their homes. (EVACUATE)