an old man was waiting for a ride （ ）the river空格应该填什么介词

an old man was waiting for a ride （ ）the river空格应该填什么介词 an old man was waiting for a ride （ ）the river空格应该填什么介词 为什么不 the old man （write）a letter now.空格处填什么? 英语翻译A young man and an old man were waiting for a bus at a s an old man __ the accident __ while he was __ __.该填什么? 年龄前的介词（ ）he was ten months old.中的括号应该填什么词? The old man takes his dog ____ a walk every morning.（横线上填介词） ( ) old man beside the river is Grandpa Wang A.An B.A C.The 句型转换While I was waiting for the bus,I met an old friend of m Once a man and his wife worked for an old man．There was a bi A:There is an old man [ ]by the river.Is he your grandfather I saw an old man and the dog________（正在街上散步的） 填什么?