751. The extinct exotic bird' s feather contains zinc.　　那種已絕跡的珍奇的鳥的羽毛中含鋅......

　　701. The assessor asserts that he inserted the deserted desserts in the desert with alert.　......

　651. When I fetched the sketch on the stretcher I found the secretary' s secret.　　當(dāng)我拿來......

　　601. Last summer the drummer became an amateur dramatist dramatically.　　去年夏天,鼓手戲劇......

　551. In the passage the passenger passed a cassette of message to messenger.　　在過道里,乘客......

　501. The commonsense commonwealth government no longer uses the uncommon commonplace.　　有常......