Experiments in the sonic imaging of moving objects .......... in both the United States and Europe well before the Second World War.

On Mercator's maps, the far northern and southern polar regions are______________.

Antonio Gaudi, architect of Barcelona's Holy Family Church, died before _________ the structure.

The earth spins on its axis and _________23 hours, 56 minutes and 4.09 seconds for one complete rotation.

Sanford Meisner .......... the Neighborhood Playhouse in New York City.

Employers often require that candidates have not only a degree, ________________.

.......... billions and billions of stars exist in the vast space beyond our Milky Way galaxy.