He has been an ______ (拍卖师) for a long time.
举一反三
- He………ill for a long time. A: has had B: has been C: is D: were
- For a long time he has been trying to put (press) ____________ on us.
- I have known her for a long time. / She........................ to me for a long time. A: has known B: has been known C: is known
- He had been short ——— exercise for a long time.
- We _____ out by that time that he ____ a thief for a long time.