(2011贺州)Our country________the sixth population census(人口普查)already．
A．finished B．has finished C．will finish D．finishes．
(2013牡丹江)Nick is never late for work．He always gets to the office________．
A．on time B．in time C．at times
(2013义乌)—Why was your class so lively，Mr．Li？
—Oh，my students________in groups about the coming school trip．
A．discuss B．are disclassing C．were discussing D．have discussed
—The windows are broken and need to be repaired．
—I think so．They can hardly________the cold now．
A．keep out B．give out C．take out D．put out
(2014广东)Most people are________building a paper factory near here．They are worried the river will get polluted．
A．for B．with C．against D．beyond
(2014云南)If there________no buying and selling of animals，there will be no killing in nature．
A．is B．will be C．has D．will hav
