第一组:affirm，assert，allege，claim

　　1.Politicians more often___ their desire for retirement than show that they really mean it.

　　A.assert

　　B.claim

　　C.allege

　　D.affirm

　　2.The suspect ___ that he had not been in the neighbourhood.

　　A.advocated

　　B.alleged

　　C.addressed

　　D.announceed

　　3.He ___ his belief that she was innocent.

　　A.affirmed

　　B.asserted

　　C.maintained

　　D.stressed

　　4.He ___ that this could be done.

　　A.affirmed

　　B.alleged

　　C.asserted

　　D.claimed

　　5.Don’t ___ to know what you don’t know.

　　A.claim

　　B.assert

　　C.allege

　　D.affirm

　　第二组:ample, adequate, plentiful,sufficient

　　1.There is ___ evidence to suggest that the lawyer in question knew exactly what she was doing.

　　A.sufficient

　　B.plentiful

　　C.adequate

　　D.ample

　　2.By law,when one makes a large purchase,he should have ___ opportunity to change his mind.

　　A.accurate

　　B.urgent

　　C.adequate

　　D.excessive

　　3.The supply is not ___ to the demand.

　　A.sufficient

　　B.plentiful

　　C.adequate

　　D.ample

　　4.He has acquired ___ proficiency to read Chinese literary works.

　　A.sufficient

　　B.plentiful

　　C.adequate

　　D.ample

　　5.A ___ harvest is in sight.

　　A.sufficient

　　B.plentiful

　　C.adequate

　　D.ample