23. The old computer system doesn't work as effectively as the new one. -> The new computer system works more effectively than the old one.

1. An alien appeared during the time people were searching the spacecraft. -> When people were searching the spacecraft, an alien appeared.
2. All the students in my class cleaned the floor more slowly than a robot. (quickly) -> A robot cleaned the floor more quickly than all the students in my class.

II. Use the suggestions to make the meaningful sentences. 26. My laptop is not good for playing games so I want to change it.

1. I think people could live on the moon because it is quite close to Earth.
2. Mr. Brown was walking at 4 p.m yesterday when he saw a UFO in the sky.

III. Write an email (80 to 100 words) to your friend about your smartphone/laptop or tablet.

Subject: Catching Up on My New Tablet

Hey [Friend's Name],

I hope you're doing well! I just wanted to share some exciting news with you—I recently got a new tablet, and I couldn't be happier with it. It's been such a game-changer for me. The display is crystal clear, making it perfect for watching movies or reading e-books. Plus, the battery life is amazing, so I can use it throughout the day without worrying about running out of power. I've been exploring all the cool features and apps, and it's made my life so much easier. Let's catch up soon, and I'll show you how awesome it is!

Take care, [Your Name]