Is this irregular plural? the men picked up their suitcases and boarded the plane

Based on the root word what is the definition of imperceptible

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel? mark this and return save and exit

Is the following statement true or false? the topic sentence of a paragraph should indicate what the paragraph is going to be about. false true