87.___________________,I called him up in advance.
88.The significant museum________________about a hundred years ago.
89.There would be no life on earth ____________________ 。
90.______________________________was the friendliness and warmth of the local people.
91.They requested that ___________________________ by next Friday.
'Gangnam Style' boosts S.Korean tourism
Words and their stories: down to earth
Experts work to develop better tools to predict severe weather
President Obama wins second term
Improving 'feed efficiency' in cattle
Russian Prime Minister calls for ban on smoking in public
Obama, Romney head to key states on election eve
Eleanor Creesy helped guide one of the fastest sailing ships ever built
Obama, House Speaker take positions on budget before negotiations
Ukraine feminists campaign against sex tourism(视频)
Could waste plastic reduce our need for oil?
Efforts mount to conserve wild turkey breeds
DC dinosaur hunter; New family movies
Over a billion women lack safe sanitation
New medical tape reduces pain for newborns, older adults
Are smartphone apps encouraging young smokers?
World Prematurity Day aims to lower rates of premature births
US 'patriotic millionaires': 'tax us more'
Remote US museum survives in Hells Canyon
Psychologist tells inspiring story of his giant uncle
Did hurricane Sandy send a climate warning?
US Congress demands inquiry into Petraeus resignation
New 007 movie reveals Bond's inner demo
Taylor Swift's 'Red' among 2012's best sellers
Obama victory driven by economy, turnout
Mae West, the wild woman of film and stage
Scandals highlight ethics lapses in military(视频)
Number of international students attending American colleges and universities continues rising
Make-your-own soap entrepreneurs clean up
Is eating like our ancestors good for us?
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