Fill in the blanks using the following expressions.

1. tranquil
2. worry
3. fill
4. derived
5. gateway

1. He ___ great satisfaction from knowing that his son was happy.
2. All we had was what was left after the guests had eaten their ___.
3. Is it the key to a _____ life?
4. A good education is the _____ to success.
5. My only _____ is that…

The answer key
1. derived
2. fill
3. tranquil
4. gateway
5. worry