What type of clause is separated with commas

What syllables in "arrived" are stressed/unstressed?

Whats the importance of gaining a general understanding of and interpretation of the work of literature. explain what the importance is to me

Which statements are true of an allegory? check all that apply. it is an extended metaphor. it has literal and symbolic meanings. it to communicate an abstract concept. it is an exact representation of actual events. it uses objects to represent a single characteristic. it has moral, social, religious, or political significance.