DiogenesenjoyedpreachingtotheelitestudentswithinthewallsoftheAcademy.

This________boyoftenplayedtrickwithhisclassmates.

When____________,icewillbechangedintowater.

____________thecause,wewereabletoproposearemedy.

Whatistherealmeaningfortheeuphemismusedinthissentence:Heisworkingathisownlevel./Hecandobetterworkwithhelp.

HowdidRainsfordcometofindhimselfonGeneralZaroff’ssmallisland?

Asmenwhoshot______forfood,theywerenaturalmarksmen.

Itwasconsideredgreat_____tochallengecrosswordpuzzle.

_______,wewouldhavepreventedthecatastrophe.

WhohadthegreatestinfluenceonCarson’slife?

WhatwashermajorinPennsylvaniaCollegeforWomen?

Insilencetheotherswatchedhimasifundera____.

Althoughexhaustedafterthenight’swork,Martha’screativeinstinctscompelledhertokeepwriting.（）

____________,shewentbacktoherroom.

能干扰DNA拓扑异构酶I的活性，从而抑制DNA合成的药物是：