將括號里的單詞轉(zhuǎn)換成正確的詞類形式填空。

　　1.Although he is now middle-aged,he still looks quite.(youth)

　　2.The new au pair girl proved to be quite different from the family's.(expect)

　　3.He was bound hand and foot and so was quiteto escape.(power)

　　4.Theexplanation was too diffcult for me.(science)

　　5.Governing a state is a difficult job.It requires a competent.(lead)

　　6.Mr.Jones is a very goodbecause he treats his employees evry well.(employ)

　　7.He hopes to be a so he works hard at music.(music)

　　8.The was not very well-known,but very talented.(art)

　　9.Beethoven was a very famour.(compose)

　　10.My professor has written many books.He is a well-known.(history)