___________ at the Isthmus of Panama, so animals were able to migrate between North andSouth America.
__________ John Kennedy was elected president, he was the youngest American President ever.
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
Education in many countries is compulsory________the age of 16.
She asked me______I was looking at.
Tom: "___________________ " Mike: "I won't say no!"
______ his brother, Mike is active and friendly.
He_______________us but he was short of money at the time.
Long ago, women were_________to vote in political elections.
We must push the piano to the corner of the hall to_____________________ our party tonight.
According to critics of globalization, several developed countries have become rich because of