Such men have made＿＿＿＿＿by developing oil businesses．

 —Excuse me, may I ask you some questions? ---Sorry, I’m too busy and haven’t even a minute to________.

Tom was searching hard in the classroom in the ___ of finding his lost exercise book.

One advantage of living on the top floor of a high rise is that you can get a good______of the city. 

When we ___ a foreign language, we’d respect its ____, or we can’t really learn it well.