1. Tianjin is one of the __________(north) cities in China.
2. More and more animals will _________(appear) because they don't have enough space .
3. In that traffic accident, twenty people were killed, __________(include) three foreign visitors.
4. His father looked __________(angry) at him because he lied to him again.
5. It is __________(terrible) cold today, so you' d better put on more clothes.
6. If we don't protect the wetlands, it will be __________(possible) to see these endangered birds,
    such as pandas and swans.
7. Plants grow __________(healthy) if they get enough water and sunshine.
8. Please cut out the __________(necessary) words.
9. My __________( hobby) are traveling and collecting.
10. Shall we meet at the __________(enter) to the cinema?