Complete each sentence with the correct form of the word given

Ex2. Complete each sentence with the correct form of the word given.
1. Your money will be refunded if the goods are not to your___________________
SATISFY
2. Please ___________________your seat belt. The plane is taking off. FAST
3. UNO stands for United___________________Organization. NATIONAL
4. The water in this area is___________________and should not be drunk. PURE
5. The situation is getting___________________ difficult for us. INCREASE