(2012·辽宁)The newcomer went to the library the other day and searched for ________ he could find about Mark Twain.

The boy said he hadn’t broken the window ______ and would pay for it by doing a part-time job for Mrs . White .

John worked hard at his lessons and gained _____to a famous university last year. 

The keeper of the spring cleared away the leaves and branches, and wiped away the silt(淤泥) that would _______ have choked and polluted the fresh flow of water.

 — What was the trouble with you the day before yesterday?— When I practiced running, my strength _____ and I fell onto the ground.