1.Whenthehousesfelldown,itsoundedasifamountainhadblownup.
2.Whenthebrickscoveredtheground,itwasasifstoneswereflowinglikewater.
3.Whenthecowsrandowntheroad,theylookedasiftheyweredrivenbyanunseenhand.
4.Whenthenationturnedtohelpusinourneed,itseemedasifallChinawasthinkingofusandwascomingtoouraid.