Parallel Structures

Insects provide many beneficial services, such as _________, breaking down deadwood, and pollinating plants.

• they condition soils

• to condition soils

• conditioning the soil

• soil conditioned

Frozen orange juice must be packed, _________, and stored when the fruit is ripe.

• be frozen

• must be frozen

• frozen

• it must be frozen

Sioux is a North American Indian Language that is spoken not only ___________ but also by the Crow and Osage tribes.

• by the

• the

• do the

• and the

In 1900 electrically powered cars were more popular than gasoline powered card because they were quiet, operated smoothly, and __________.

• handled easily

• ease of handling

• handling easily

• easy to handle

Roger Williams was a clergyman, ________ the colony of Rhode Island, and an outspoken advocate of religious and political freedom.

• founded

• the founder of

• was the founder of

• he founded

Paint can be applied to a surface with rollers, _________, or spray guns.

• brushes

• brushes can be used

• with brushes

• by brush

The use of labor-saving devices in homes, ____________, and factories added tot he amount of leisure time people had.

• at an office

• used in office

• offices

• in offices

A dulcimer can be played by either striking its strings with a hammer or __________.

• to pluck them with the fingers

• fingers are used to pluck them

• they are plucked with the fingers

• plucking them with the fingers

Throughout history, trade routes have increased contact between people, __________, and greatly affected the growth of civilizations.

• have resulted in an exchange of ideas

• an exchange of ideas has resulted

• resulted in an exchange of ideas

• resulting in an exchange of ideas.

Walt Disney made many technical advances in the use of sound, color, and ________ in animated films.

• photographing

• using photography

• photography

• use of photographs