Food prices are climbing around the world because farmers can't ______ demand for grain．
A.catch up with
B.keep up with
C.grow out of
D.put up with
网友回答
B解析catch up with赶上；keep up with跟上；grow out of 出自于；put up with容忍。句子意思是“食品价格在全世界都在上升，因为农民跟不上对谷物的需求。”