--- What are we supposed to do first if we want to develop our village?
--- Lots of new roads ___,I think.
A．must build B．must be built C．can be built
--- Hello! Could I speak to Mr. Liu , please?
--- Sorry, he____ for a month．
A．was left B．has been away C．had been away
Maybe the disaster(灾难)can destroy our homes, but _______can destroy the love in our life．
A．something B．everything C．nothing
---I think we should write a letter about the pollution_______ the newspaper.
--- Ok, Let’s begin.
A．to B．at C．for
--- Do you know Yang Zhengning?
--- Certainly．He is a great scientist _______won the Nobel Prize for physics．
A．which B．whose C．who
Some parents have left their hometown ____make a living in some cities.
A．so that B．such that C．in order to
