1．(2011·湖南)One third of the country ________ covered with trees and the majority of the citizens ________ black people.
A．is; is B．are; are
C．is; are D．are; is
[解析]第一空的主语 the country 为单数，故用 is；第二空 the majority of the citizens 与复数动词连用。
[答案]C
2．(2010·陕西)It is reported that many a new house ________ at present in the disaster area.
A. are being built B. were being built
C. was being built D. is being built
[解析]考查主谓一致和时态。“many a＋单数名词”作主语，谓语要用单数形式；由时间状语 at present 可知，要用现在进行时态；house 和 build 之间是被动关系，所以用现在进行时态的被动语态。句意：据报道，目前受灾地区正在建造许多新房子。
