In which sentence is the underlined word a past participle?
a. (having) been warned of a possible eruption, the people left their town at the base of the volcano.
b. (flowing) lava from a volcano is an amazing sight to see.
c. (melted) rock can explode or flow from different types of volcanoes.

Which statement from chamberlain's speech to parliament did the least to support his cause? a. "no doubt i shall have plenty of critics who will say that i am guilty of facile optimism . ." b. "the house will remember that when i last addressed them i gave them some account of the godesberg memorandum . ." c. "therefore, it was essential that we should quickly reach a conclusion . ." d. "the relief that our escape from this great peril of war has, i think, everywhere been mingled in this country with a profound feeling of sympathy . ."

What does a change in medium allow the audience to do?

Which excerpt from leo tolstoy's the death of ivan ilyich reflects the author's opinion that the members of the medical profession don't really care about their patients?