TOEFL (S32)

In 1970, the Canadian scientist George Kell_______that warm water freezes more quickly than cold water.

• proved

• proving

• proves

• prove

The rebuilding of the Inca capital Cuzco was_______ in the 1460s.

• begun

• beginning

• began

• begin

Only through diplomatic means can a formal agreement be _______.

• reach

• to reach

• reaching

• reached

Hollywood film producers have been regularly_______millions of dollars for a film.

• budgeted

• budgeting

• budgets

• budget

The film-processing company has _______a means of developing the 62-year-old film that might solve the mystery.

• devising

• devised

• been devised

• devise

Platinum_______a rare and valuable metal, white in color, and net to silver and gold, the easiest to shape.

• is

• was

• has been

• be

A great deal of thought has_______into the designing of a concert hall.

• went

• going

• to go

• been gone

The healthful properties of fiber have_______for years.

• known

• be knowing

• knew

• been known

The vessel that sank may_______the gold and jewels from the dowry of Catherine of Aragon.

• carry

• be carried

• have to carry

• have been carrying

Galileo_______his first telescope in 1609.

• builds

• built

• is building

• was built

• has built