__________knowledge comes from practice is known to all.
---What were you doing when I phoned you? ---I had just finished my homework and ______ to take a bath.
You can not _____him _____a selfish man though he looks cold.
My sister ____a good chance to go abroad for further study of English.
Since then the number of people taking driving lessons ____20.
The patient was ___of losing his life and had to be operated on at once.