Participial Phrases

Which of the following is a past participial phrase describing a nebula?

A nebula is a cloud of gas and dust that has been _____ by stars.

• formed

• forming

• formed by

Which of the following is a present participial phrase describing a nebula?

A nebula is a cloud of gas and dust that is _____ stars.

• forming

• formed by

• forming into

Which of the following sentences correctly uses a past participial phrase to describe a nebula?

• The nebula was formed by stars.

• The nebula is forming stars.

• The nebula forms stars.

• The nebula is formed into stars.

Which of the following sentences correctly uses a present participial phrase to describe a nebula?

• The nebula is forming stars.

• The nebula is formed by stars.

• The nebula forms stars.

• The nebula is formed into stars.

Which of the following is a past participial phrase describing a quasar?

A quasar is a _____ supermassive black hole.

• formed

• forming

• formed by

Which of the following is a present participial phrase describing a quasar?

A quasar is a supermassive black hole that is _____ energy.

• forming

• emitting

• emitting into

Which of the following sentences correctly uses a past participial phrase to describe a quasar?

• The quasar was formed by a supermassive black hole.

• The quasar is forming energy.

• The quasar forms energy.

• The quasar is formed into a supermassive black hole.

Which of the following sentences correctly uses a present participial phrase to describe a quasar?

• The quasar is emitting energy.

• The quasar is formed by a supermassive black hole.

• The quasar forms energy.

• The quasar is formed into a supermassive black hole.

Which of the following is a past participial phrase describing a black hole?

A black hole is a region of space that has been _____ by gravity.

• formed

• forming

• formed by

Which of the following is a present participial phrase describing a black hole?

A black hole is a region of space that is _____ matter.

• forming

• attracting

• attracting into