He is modest and confident, _______ in my opinion, is most important in society.
______ you are alone at home, why don’t you go with us to the party?
Can you ___me to call Mr. Smith this afternoon? You know how forgetful I am.
It was quite ___accident that I met him; he was homeless and ___rags at that time.
You should pay a lot of attention to children’s ideas; sometimes they ___be really creative.
He is very humorous, while his brother is rather serious. That is ___their difference lies.