It's said that 5G network （bring） into use at the end of this year in Wu Xi．
If you don't have a deep love for something， don't be （satisfy） until you find one．
Look at you! You're breathing so （heavy）． We're not even halfway there yet．
The mother said goodbye with a smile， but her eyes couldn't hide her （sad）．
You told me you had （deal） with these letters． Why are they still here？