According to the internet, the Friar is referring to Juliet's parent that them crying is normal and natural, but since Juliet is in a better place, they should rejoice for the dead and that her soul is still pure when she goes up to heaven because she is young.
Or,
Natures tear meaning natural tears, merriment meaning happy. It is natural to cry over the death of a child but they should be happy she is going to be in a better place.
Answer:
3. Would you like a sandwich? "No thanks, I have <u>just</u> had lunch.
4. Shall I pay the waiter? "No, I have <u>already</u> paid him."
5. We have known each other <u>for</u> ten years.
6. Rayan hasn't texted me since Sunday morning.
7. ...you <u>ate</u> breakfast.
8. The train...<u>arrived</u>.
Explanation:
For the rest it is mainly just the past tense of the word.
For example:
He (eat) breakfast.
He <u>ate</u> breakfast.
