In communication, a smile is usually _____ strong sign of a friendly and _____ open attitude.
The population of the country is 3 million, _____ Kooris.
In the market I found the prices of vegetables were ______ high.
I stood there patiently until he ________ his work.
It will be a long time ______- he returns.
_________ of us knows how many of them have been killed in that accident.