It’s a difficult time, but we will never _____ hope.
Has your brother ever been to the Sand Lake?––Yes, he has _______ the Sand Lake many times.
We can have ___ bluer sky if we create ___ less polluted world.
The girl _______ the woman. Maybe she is her daughter.
If you have got _____temperature without coughing, perhaps you have caught _____cold. Just stay in _____bed. Don’t think that you have got SARS?