________ a child begins school, he enters a world of fierce competition where success and failure are clearly defined and measured.
______ the poor living conditions, they continue to gather in the suburban villages because of low rents and easy transport.
The truck ran down the hill, and the driver _____, according to the local newspaper, to have been killed.
This is not an economical way to get more water; ________, it is very expensive.
—Which of these two books will you take? —I’ll take ______, in case the journey is boring.
I know this is not quite the right word, but I can’t be bothered to think of _____.