Noun Clause and Adjective Clause as Connectors

Yeast is an organic catalyst ____________ known to prehistoric humanity.

• was

• which was

• which it

• which

In the late 1970’s and early 1980’s, the United States developed the reusable space shuttle ________to space cheaper and easier.

• to make access

• and making access

• which made accessible

• and made accessible

_______more than 65,000 described species of protozoa, of which more than half are fossils.

• Being that there are

• There being

• Are there

• There are

Modern skyscrapers have a steel skeleton of beams and columns ________a three-dimensional grid.

• forms

• from which forming

• and forming

• that forms

There are hundred of reasons that _________ why people love chocolate very much.

• are explained

• which are explained

• explaining

• explain

Justice Sandra Day O'Connor was ___________ served on the U.S. Supreme Court.

• the woman who first

• the first woman

• who the first woman

• the first and a woman

________ have at least four hours of hazardous materials response training is mandated by federal law.

• All police officer

• All police officers must

• That all police officers

• For all police officers

Scientists are now beginning to conduct experiments on _________ trigger different sorts of health risks.

• how noise pollution can

• noise pollution can

• that noise pollution

• how noise pollution

___________ in the first draft of the budget will not necessarily be in the final draft.

• Although it appears

• It appears

• What appears

• Despite its appearance

The television, ________ so long been a part of our culture, has an enormous influence.

• has

• it has

• which

• which has