Answer:
Heart of stone
Explanation:
The saying "Heart of stone" is a figure of speech, you can't actually have a heart made of stone.
I think it is:
Sarah opened her drawer took out the new stationary set. Now that she has finished her chores, she can spend some time writing a letter to her friend Cade. Cade had just moved to a new city a few months ago, but Sarah felt as if he had been gone for a year. Fortunately, they both love writing letters. They even put their own creative touch, a sketch, at the bottom of each letter. They were determined that their friendship would last even if they were far away from each other.
Something like that. I hope this helps.
Participles are words that are formed from verbs but act as adjectives. They are called <em>verbals</em>. What is more, phrases are a group of words without a subject and a verb that function as as single part of speech. Therefore, participles consist of the participle and its complements and modifiers.
Taking all this into account, it can be said that the participial phrase is "trimmed that morning" and that it modifies the noun "grass". This is a past participle which is further specified by the NP "that morning" which gives information about the time in which the grass was trimmed.