He had never envied the rich＿＿＿money．

Mum disliked ______ when I behaved badly in front of the guests.

Nowadays everything strange is ________ strange. That is to say, any unexpected thing is possible to happen.

Understanding the cultural habits of another nation,especially ______containing as many different subcultures as the United States,is a complex task.

—Is Mike a diligent student?  —No，but he is a lazy one，if   ___         ．