While both have to very different meanings, both have a definition of meaning something small (alley - small passage, pony - small horse, pour, or amount of money). Both are 6 letters, but when made plural, are spelling differently (alleys - just add s, ponies - drop the y, add ies). Both are Latin in origin, changing letter to French. But alley is late middle English, with pony being from the mid 17th century.
It's definitely answer D. The other choices don't make sense, such as choice C, it uses a past tense verb. If I were you, I would use process of elimination by eliminating the answers that don't make sense, or don't sound right in the sentence.
The predicate adjective modifies the subject of the sentence..
so in our sentence
The sparkling clear pool
- this would be the subject - therefore it's not our choice
looked
- this is the verb, a linking verb, also not our choice
extremely cold
- yes, this here is our predicate adjective!
Answer:
D. Compound subject
Explanation: Just took the test
