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1Research Ain molecularӵģbiology has demonstrate Bphenomenal similarities Cbetween Dhumans and apesԳ
2Gore Vidal has steadily pursue A a literary career Bremarkable Cfor its productivityversatilityԣ and unpredictability D ԣ
3For centuries large communities of people have living Aon houseboats in parts Bof the world where Cthe climate is warm and the waters are calm Dݡ
ʱʾΪֹһʱڷǿǶڵӰ죬ɵĶҲɱʾζܺͣϰԵΪͳĶ
4Ninety eight percent of all animal species Ain Bhistory had Cdied out D.
5The domestic Adogconsidered to be the first tamed animalis coexisting Bwith human beings since Cthe days of the cave dwellers Dݣסߣ
бʾΪֹʱ״ʱʱЩʱ״nowtoday this weekthis monththis yearʱͱʾʱ״ãyesterdaylast yearȣԺalwaysbefore justinduring the pastfew weeksyearsfifty yearsãʱinʾ"ȥʱ"after
6Industrial Amanagement is the aspect Bof business Cmanagement that was Dmost prominent in the United States in the past eight years.
7Learning a foreign language is especially Adifficult for those Bwho had Cnever learned one before D.
ġalreadyas yetyeteverjustnever ั״£ʱ
8In just Athe last Bfew yearsfootball is become Cmore popular than baseball in that country D.
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