at colleges in large cities ran into （） debts because it was easier for them to find part-time jobs than those in rural areas. A．little
B．less C．few D．fewer （） the room when I found a letter on the floor. A．I had entered B．had I entered C．I entered D．did I enter could have saved me some trouble （） about it. A．had I known B．I had known C．did I know D．I knew was not until almost a century （） blacks began to demand their rights as American citizens. A．when B．since C．that
D．which females in the rat population were （） by the high population density. A．most seriously affected B．the most seriously affected C．the most serious affected D．the serious most affectect dollars （） a big sum of money for a child. A．are B．is C．being D．having been could make a teacher far superior （） the average. A．than B．with C．to D．as schools （） black children went were simply not good enough.
A．to which B．to that C．in which D．in that 'd rather （） care of the stomaches of the living than the glory of the dead in the form of stone memorials. A．take B．took C．taking D．have taken 19.(Alike) light (waves), microwaves (may be) reflected and (concentrated).（） A．Alike B．waves C．may be D．concentrated (animals) have been (regardless) by nearly all societies as a (valuable) economic (resources).（） 第
