the old man was quietweak,so he_(must look after)
You must _____ (look) after the old man.
look after the old man
Who _____(look) after the old man when his arm was broken?
2.The old man was quite weak after the accident,so he______.
How glad the old man was ___his son after so many years.
()young must look after ()old
we must look after the old men 同义句
They both take turns___(look after)the old man
The old man was so tired that be could h_______walk
the old man was so poor that he___beggary
The old man needs _____.A.to look after B.looking after C.be
the young must look after the old 我想知道为什么要用the