Which sentence contains an interjection?
1- aha, i've discovered the secret door.
2- carla, would you move over?
3- both egrets and herons nest here.
4- how can we best solve the problem?

Use the drop-down menus to identify each underlined verb form as a participle, gerund, or infinitive. 1.(climbing) a rope is not as difficult as you might think. gerund 2.i plan (to compete) in a chess tournament this weekend. infinitive 3.kali loves the smell of (roasting) garlic. participle

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

Write an argumentative paragraph answering does technology make us feel more alone?