The key answer of exercise 13

My favourite gadget is my phone. It's brand new - I've had it for a week. My parents bought new cell phones for me and my brother. His cell phone is very similar to mine, but mine is white and his is black. I have already downloaded a lot of applications. Since I've had it, I've also taken a lot of photos, but I haven't shared them on social networks yet. I just recharged the battery, so I'm doing that now. I haven't played games on the phone yet, because I've been very busy with homework. A new math teacher just started working at the school and has already given us a lot of homework. That's okay because I've always liked Maths since I started going to school. I have already used my cell phone to do many things, but I haven't made any phone calls yet.