A
Drone X Pro is a shining star on the drone(无人机) market. Here's why it's gone viral.
How does Drone X Pro work?
Start by installing the Drone app to your smartphone (Android and iOS). It takes just minutes. After that, just install（安装）the battery in your drone and launch the app. You're now ready to fly your Drone X Pro!
Why is this drone so special?
The drone is about the size of a large screen smartphone. It's so small that it fits in any pocket or handbag!
Here's the best part: flying is extremely easy. There's no experience required to fly this drone. You can easily control and fly this drone，even if you've never flown a drone in your life. Flying the drone is smooth and natural as riding a bike. Our friend’s son came over to the office, and he figured out how to fly the drone in just minutes. You can't imagine how stable and smooth his controls are!
Once you own this drone，you can enjoy amazing HD pictures of nature，friends，and families. It's a blast!
How much does it cost?
Now，Drone X Pro sells for ＄150 each online and two at a discount of 80％. It's a great deal！If you're not satisfied, return it and you can get your money back.
Because of the easy use, portability, low price, and small size, it's absolutely worth it！
Just imagine amazing pictures and videos you'll be taking with your new Drone X Pro. If you've never flown a drone before, this is the time to start!
Call now! 400-800-7832 or order yours from the official website www. dronexpro. com.
21. What makes Drone X Pro different from the other drones?
A. It is easy to carry. B. It is unnecessary to install.
C. It is complex to control. D. It is expensive to afford.
22. How does the advertisement prove flying Drone X Pro easy?
A. By sharing some experience. B. By presenting a vivid picture.
C. By stating its operating steps. D. By giving a specific example.
23. How much should you pay to purchase two such drones online!
A.＄120. B.＄150. C. $240. D. $ 300.
