After a long walk, the old man空格 be tired now这里用should为什么不行?

After a long walk, the old man空格 be tired now这里用should为什么不行? After a long walk,the old man be tired now. After a long walk ,the old man ____be tired now() After a long walk,the old man be tired now.A、can B、need C、mu After a long walk,the old man ----be tired. The old man is very t____ after a long walk You must be tired after the long walk.Walk not___a rest.A :t After such a long journey,the children ___ be very tired now After the long walk the man too tired and he sat there,_____ after（ what ）seemed to be a long time ,the old man went out 2.After ___ seemed to be a long time,the old man went out of After( )seemed to be a long time,the old man went out form t