. Every man, woman and child ______ some history, enough at least, to survive in the world.
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .
I have never seen the word ______ that way before.
I appreciated ____ the opportunity to study abroad two years ago.
The International Day against Drugs, aimed at warning people to keep away from drugs, _________ on June 26th every year.
. Progress so far has been very good. _______, we are sure that the project will be completed on time.