In 1975, the first successful space probe to ________ beginning to send information back to Earth.

• Venus

• Venus the

• Venus was

• Venus it was

The first _____ appeared during the last period of the dinosaurs’ reign.

• flowers are plants

• plants have flowers

• plants flowers

• flowering plants

In 1867, ____ Alaska from the Russians for $7.2 million.

• purchased the United States

• to purchase the United States

• the United States’ purchase of

• the United States purchased

_____ first settled the Hawaiian Islands between A.D. 300 and 750.

• The Polynesians

• The Polynesians arrived

• Because of the Polynesians

• It was the Polynesians

Simple sails were made from canvas _____ over a frame.

• a stretch

• stretched

• was stretched

• it was stretched

In 1066, a bright comet _____ in the sky attracted much attention.

• was appearing

• appears

• it appeared

• appearing

In some daguerreotype cameras, _____ through a hole in the back of the box.

• the objects view

• the object was viewed

• from the view of the object

• viewed the object

The cornea is located under the conjunctiva, on ______ of the eye.

• the part is exposed

• exposed the part

• the exposed part

• exposes the part

In Watch the Skies, Curtis Peebles ______attempt to explain America’s belief in flying saucers.

• makes a fascinating

• making a fascinating

• fascination with making

• fascination made a

The first plant-like organisms probably _____ in the sea, perhaps 3 billion years ago.

• life

• living

• lived

• it was living