Question

the speeding truck knocked the old man down which is subject and predicate​

Answer 1

Answer:

Subject : The speeding truck

Predicate : knocked the old man down

Explanation:

Subject tells about the pronoun, noun or noun phrase that does the action of verb.

Predicate tells about what the subject is doing or what the subject is.

Answer 2

Answer:

here old man is the subject and knocked by the speeding truck is the predicate