Answer:
1-Will it rain tonight?
2-How tall the building is ?
3- Mangoes are juicy fruits.
4- The Ramayana is the holy book of the hindus.
5- Can you attend the meeting on Tuesday?
6- The king had beautiful daughter.
Explaintion:
It is very easy just put capital letter if it is a name or country ok and the last put . If it is a sentence and ? If it is a question
I hope I helped you