If people can learn to hate ___
they can be taught to love
Explanation
The textbook context provides a list of phrases to complete the sentences. For the sentence 'If people can learn to hate', the correct phrase from the given options is 'they can be taught to love'. This is also directly supported by Mandela's quote in the text: 'People must learn to hate, and if they can learn to hate, they can be taught to love, for love comes more naturally to the human heart than its opposite.'
Solution Steps
Step 1: Identify the sentence to complete: 'If people can learn to hate ___'
Step 2: Match it with the provided phrases in the context. Phrase (i) 'they can be taught to love' fits logically and grammatically.
Step 3: Verify with the text extract: '...if they can learn to hate, they can be taught to love...'