Subject/Verb Agreement

People throughout history (has, have) been fascinated by the night sky.

• Have

• Has

The distance to the moon (is, are) 238,857 miles.

• Is

• Are

The features of the moon (is, are) seen through powerful telescopes.

• Are

• Is

The sun, like the earth, (influences, influence) the moon's motion.

• Influence

• Influences

The moon's orbit around the earth (takes, take) about 27 days, 8 hours.

• Take

• Takes

The earth, at the same time, (moves, move) around the sun.

• Moves

• Move

A full moon, on the average, (occurs, occur) every 29 1/2 days.

• Occurs

• Occur

Tides on the earth (rises, rise) according to the moon's gravitational pull.

• Rise

• Rises

Photography from lunar-orbiting vehicles (shows, show) features on the moon's surface.

• Shows

• Show

Exploration of the moon (continues, continue).

• Continue

• Continues