15. In this sentence, what is the antecedent of the pronoun it?

A. work
B. house
C. Carla
D. her

I answered B, because the house (noun) was replaced by the word it (pronoun, which is considered the antecedent of the pronoun. Is my thinking correct.

17. Which of the following statements is true regarding sentence components?

A. Often the subject will act upon the object.
B. The predicate can be a noun or a verb.
C. The object can be a noun or a verb.
D. Every sentence must have an object.

I picked A, because in many sentences the subject acts upon the object. For example, Marie kicks the football. Marie is the one kicking the football. Is that right?

19. In which of the following sentences is the underlined word a concrete noun?

A. He was helping the boys to finish their chores.
B. Running is her favorite pastime.
C. She was thinking about the children all day.
D. When the bus arrived, the driver began talking to us.

This one did confuse me. I picked B, because the present participle of run is acting as a noun. It seems that the other sentences utilized the words as verbs. Concrete nouns indicate objects that can be touched, heard or seen. You can see a person running and you can touch them. Is that right?

#15 ... Where's the sentence?

#17 ... Yes, you're correct, mostly because the other three are clearly incorrect! But your reasoning is sound.

#19 ... Which words are underlined?

# 15 the sentence is: Although it was old and needed a lot of work, Carla knew this was the house for her.

15. In this sentence, what is the antecedent of the pronoun it?

A. work
B. house
C. Carla
D. her

I answered B, because the house (noun) was replaced by the word it (pronoun, which is considered the antecedent of the pronoun. Is my thinking correct.

19. In which of the following sentences is the underlined word a concrete noun?

A. He was helping the boys to finish their chores. (Helping is underlined)
B. Running is her favorite pastime. (Running is underlined)
C. She was thinking about the children all day. (Thinking is underlined)
D. When the bus arrived, the driver began talking to us. (Talking is underlined)

This one did confuse me. I picked B, because the present participle of run is acting as a noun. It seems that the other sentences utilized the words as verbs. Concrete nouns indicate objects that can be touched, heard or seen. You can see a person running and you can touch them. Is that right?

In which of the following sentences is the underlined word a concrete noun?

A. When the bus arrived, the driver began talking to us.

B. He was helping the boys to finish their chores.

C. She was thinking about the children all day.

D. Running is her favorite pastime.

15. Your thinking is correct. In the given sentence, the pronoun "it" is replacing the noun "house." Therefore, the antecedent of the pronoun "it" is B. house.

17. Your understanding is accurate. In many sentences, the subject does indeed act upon the object. For example, in the sentence "Marie kicks the football," Marie (the subject) is the one performing the action of kicking, and the football (the object) is the one being acted upon.

19. Your reasoning is partially correct. Concrete nouns represent physical objects that can be experienced through the senses. However, in the given options, the concrete noun is better represented by A. boys. The other options mostly consist of abstract nouns or verbs. While "running" in option B can function as a gerund (a verb acting as a noun), it is not a concrete noun itself.

You're right for #15.

In #19 ...

A. "helping" is part of the verb.
B. "Running" is a gerund, a verbal noun form, and yes, it's serving as the subject here.
C. "thinking" is part of the verb.
D. "talking" is a verb form which is NOT serving as a noun!

So yes, your choice for #19 is correct, too.

Nice!

=)

thanks for explaining number 19 clearly. That question was a little difficult for me.

You're welcome. It's not always easy with -ing verb forms!!

part of the verb?
present participle??
gerund???

There are some good, straightforward explanations and examples in here:
http://www.chompchomp.com/terms.htm

=)