Please excuse me _______ your letter by mistake.
Children, who grow up in a friendly family, are more ______ to get along well with others.
______ where to go, he asked a passer-by for help.
It is global warming, not other things, ______ the extreme weather.
Three students ______ Wenzhou Middle School took part in the Oral English Competition.
With food, water and electricity ______, the villagers are suffering a lot.