Low-carbon lifestyle is of great benefit to improve the world environment.________can be enjoyed from it until you have a deep understanding of it, however.
Recent pressure at work may________ his behavior.A.accounts for B. pay for C. stand for D leave for
The twin towers fell down. It looked_____ a huge piece of chocolate had been melted down(溶化).
The money is to be used________the poor.
The traditional view is _______ we sleep because our brain is “programmed” to make us do so.
_______ the influence of computers, nowhere have we seen the results more clearly than in the US.