us
- Putting on a happy face not only helps us make friends but also makes us feel better. —- _______.
- ____ is known to us all is that the World Expo 20
- _________ is known to us all is that the 20
- _________ is known to us all that the earth is smaller than the sun.
- ____is known to us is that China has won five gold medals in the 20
- _____frightened us ____the electricity was suddenly cut off, which threw all of us into the dark.
- Air is to us _____ water is to fish.
- All of us thought _________ no use talking about some unpractical matters frequently.
- As is known to us, happiness consists ____ appreciating ____ you have.
- is known to us all, Germany is ______ European country.