Here are the completed sentences using the words from the vocabulary box:
1. I downloaded a useful **app**. Now I can add stickers to my photos.
2. Is there **Wi-Fi** in this place? I want to connect to the Internet.
3. Oh, no! My phone **battery** is only 5%!
4. This song is very popular. Many people have it as a **ringtone** on their phone!
5. He uses his phone all the time so he always carries a **portable charger** with him.
6. The **touch screen** of my phone is broken. Can you fix it for me?