In order to find the missing child，villagers ________ all they can over the past five hours.(2012·安徽)

—Hi, Susan, where were you at lunch time？I ________ a seat for you in the coffee shop.
—Oh, sorry to miss you.My political science class ran longer than usual.

The number of historic buildings which ________ has reached a surprising figure that we must be aware of.

(2013·咸阳二模)The murderer, together with his two brothers, ________ sentenced to death just now.

(2013·湖南长沙二模)Either the judge or the lawyers ________ wrong on the case at that moment.

(2013·安徽省芜湖三校一模)A recent study has found that the number of smokers ________ sharply over the past five years.

He gave us advice that this work ________.

(2011·湖南)One－third of the country ________ covered with trees and the majority of the citizens ________ black people.

The basketball coach，as well as his team，________ interviewed shortly after the match for their outstanding performance.(2012·陕西)

All the scientific evidence ________ that increasing use of chemicals in farming ________ damaging our health.(2012·湖南)