A dependent clause should have no punctuation between an independent clause when the dependent clause comes afterwards.
The sentence that contains a verbal phrase acting as a modifier is: Giving a presentation in front of my class, I suddenly developed sever stage fright.
Modifiers are optional elements in a phrase structure that even when removed, it does not affect the whole grammar of the sentence.
can we get some information on this first
<span> Curie, a two-time Nobel Prize recipient and physics professor at the Sorbonne (a college of the University of Paris), presented this speech at Vassar College in Housekeeping, New York, on May 14, 1921. The speech, preserved in print as no. 2 of Vassar's Ellen S. Richards Monographs series, centers on what Curie called "the somewhat peculiar conditions of the discovery of radium" and her view that "the scientific history of radium is beautiful." The speech is provided online at the Gifts of Speech Web site, by Liz Linton, site director; and electronic resources and serials librarian in Cochran Library, Sweet Briar College, Virginia.</span>