I don’t think his success has a lot to do with good luck. It’s hard work ______ has made him what he is today.
She is looking forward________to the ball.
—What is the new bridge like? —Well,it is now________of the old one.
—I don't imagine Russ and his poor dog had a good time on the deserted island,________? —I have no idea.
She started laughing loudly when I began to sing,which made me feel very________.
My father likes playing golf;he's really enthusiastic________it.