Out of the crowded bus______, who was dressed in a black suit and waved to a woman..
Parents’ opinions on studying abroad differ greatly _____their children’s ____their aims.
--- Mum, I don’t want to take the medicine.--- Oh dear, you should know that good medicine for health ____ to the mouth.
--- You won’t go to Mary’s wedding, will you? --- No, _____ invited.
According to a UN report, one third of the world population have no ____ to clean drinking water and health care.
It is likely that water is not ____ endless resource, nor ____ that can be made once more.