It suddenly occurred to him________he had left his keys in the office. (2012·江西，25)

The lake is _____ beautiful in spring and summer because of the pleasant weather in both seasons

My brother is ______ than me.

en, for _____ life had been very hard, donatedhis possessions to earthquake-hit families in Sichuan

What do you think of Billy, the shortestboy in our class —I think he is _________honest boy.