Out of the crowded bus __________, who was dressed in a black suit and waving to a woman.
---- Do you know our hometown at all? ---- No, this is the first time I ____ here.
They won the game, _______ made their team leader proud of them.
The first thing ________ we should do is to master the basic grammar.
Diamond, _________, is the hardest of all materials.
He is not such a man ________ cares for himself only.