Who______that first discovered America—the New Continent？A．wasB．it wasC．was itD．did

The example of American Indian languages in the passage is to illustrate that ______.A．Ame

The United States discovered in 1982 that about one-fifth of its farmland ______ topsoil a

John Cabot, the person who first discovered Canada in 1497 was a（n)______explorer.A．Italia

New Zealand was first discovered by the______explorer Abel Tasman in 1642.A．FrenchB．DutchC

Researchers discovered that plants______with a virus give off a gas that activates disease

It was not______midnight that they discovered the children were not in the beds.A．beforeB．