If you suddenly lose your train of thought during your speech, you may ask the audience a question such as “can everyone hear me okay? ” this public speaking strategy will allow you to a. show the audience that you care c. make people laugh b. to make sure the sound tech is doing his/her job d. give you time to gather your thoughts

summary - a brief statement or account of the main points of something.

main idea - the main idea is defined as the main point of a speech or piece of writing.

paragraph - a distinct section of a piece of writing, usually dealing with a single theme and indicated by a new line, indentation, or numbering.

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.