I'll create a basic structure for a speaking English app using React Native and Expo Go. This app will include speech recognition for user input and text-to-speech for the bot's responses. Here's how we can set it up:

This setup creates a basic structure for a speaking English app with a bot that can listen to user input and respond verbally. Here's a breakdown of what each component does:

1. App.tsx: This is the main component that orchestrates the entire app. It manages the state for user input, bot responses, and whether the app is currently listening for speech input.
2. ChatBot.tsx: This component displays the conversation between the user and the bot.
3. VoiceRecognition.tsx: This component handles speech recognition using Expo's Speech API. It starts listening when isListening is true and stops when it's false.
4. TextToSpeech.tsx: This component handles text-to-speech functionality, speaking out the bot's responses.

To use this app:

1. Make sure you have Expo CLI installed: npm install -g expo-cli
2. Create a new Expo project: expo init SpeakingEnglishApp
3. Navigate to the project directory: cd SpeakingEnglishApp
4. Install necessary dependencies: expo install expo-speech
5. Replace the contents of App.js with the App.tsx code provided above.
6. Create a components folder and add the other three component files.
7. Run the app with expo start

Note that this is a basic implementation. For a production app, you would want to:

1. Implement error handling and loading states.
2. Connect to a real AI service for more intelligent responses.
3. Add more features like conversation history, different topics for practice, etc.
4. Implement a more sophisticated UI, possibly with animations and a character representation of the bot girl.
5. Handle edge cases like network errors, permission denials, etc.

Remember to test thoroughly on both iOS and Android devices, as speech recognition and text-to-speech capabilities can vary between platforms.