block12.js

import {
	StyleSheet,
	Text,
	View,
	TouchableOpacity,
	TextInput,
	ScrollView
} from 'react-native';

// ...

import TodoList from './TodoList';

// ...
return (
	<View style={styles.container}>
		{/* ... */}
		<ScrollView style={{ width: '100%' }}>
			{todos.map(item => (
				<TodoList text={item.text} key={item.key} />
			))}
		</ScrollView>
	</View>
);