It is better to water the flowers in the late afternoon

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2. It is better to water the flowers in the late afternoon.
→ It is better that
3. It is only right to send the son to the boarding school.
→ It is only right that
4. It is crucial to keep the machine indoor.
→ It is crucial that
5. It is essential to read the document before signing it.
→ It is essential that...