【已知平行四边形ABCD,点P的对角线BD上,EF平行BC,GH平行AB,点E,H,F,G分别在边AB,BC,CD,AD上,哪两个平行四边形的面积相等?】
根据短文内容,用for,too,on,copy,complete,problem,other,telephonenumber,radioshow或listento的适当形式完成短文.Inthepast,whenpeoplehad(1)_____,theywenttotheirfamiliesorfriendstogetadvice.Today,itispossibletogetadvi