Hewassaid_____agiftfromher,knowingthatitmeantabribe.

• A.toberefusing
• B.tohaverefused
• C.toberefused
• D.tohavebeenrefused

Heisvery_____andwell-qualified,soheshouldreachthetopofthisprofession.

• A.ambitious
• B.urgent
• C.proud
• D.jealous

Hehasmadeanotherwonderfuldiscovery,_____ofgreatimportancetoscience.

• A.whichIthinkis
• B.inwhichIthinkitis
• C.whichIthinkitis
• D.ofwhichIthinkitis

Theequipment_____outoforder,theexperimenthastobeputoff.

• A.hasbeen
• B.being
• C.is
• D.be

Undernocircumstances_____anythingthatwillbenefitourselvesbutatthesametimeharmtheinterestsof。

• A.shouldwedo
• B.weshoulddo
• C.woulddowe
• D.wewoulddo

Asfarassheisconcerned,onepieceofmusicisverymuchlike

• A.another
• B.theother
• C.other
• D.anyother