问题
选择题
In order to produce more grain, it________that the area of farmland_____.
A．is demanded, being increased
B．has been demanded, be increased
C．demand, should be increased
D．demands, should increase
答案
答案：B
本题考查时态及虚拟语气。根据语境可知，那个地区已经被要求，故用现在完成时的被动语态，demand + that从句，用should + V原形，根据语境用被动，选B。