Which verb form is used to indicate present perfect tense?

What type of irony is this:"Down there!" a soldier shouted, gesturing with his rifle. Part of the moon still hung in the sky, a pale halo over his blond head."

Which of the following is punctuated correctly? My brothers were born on September 17, 1949, December 7, 1951, and December 31, 1953. My brothers were born on: September 17, 1949, December 7, 1951 and December 31, 1953.

The first Americans were

Write a paragraph about, What if every family owned a helicopter using all five sentence patterens

Which element is the major component of organic molecules in all living organisms? oxygen carbon nitrogen phosphorus

Sentence with words speculation and restrict

Which of the following words is NOT an example of a countable noun? a. cereal b. cup c. window d. magazine

What countries celebrate april fools day?

What part of speech is the word in quotation marks? Suddenly the wind "slammed" the door closed.

What is the persuasive effect of Jefferson's language in the closing paragraphs of the Declaration of Independence?