1) Select the abbreviation that tells how the italicized noun clause is used.

S-subject, DO-direct object, SC-subject complement, OP-object of preposition
Our study efforts should go to (whatever subject is most in need of improvement.)
*my answer is DO

2)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
A lecture on cleanliness was not (what the children wanted to hear.)
*my answer DO

3)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
Have you discovered (where you left your books?)
*my answer SC

4)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
The company rules demanded (that the monthly bills be paid before the end of the month.)
*my answer SC

5)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
(What I had been hoping for) was a scholarship.
*my answer SC

6)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
(That you overslept) is a serious matter.
*my answer DO

7)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
The valedictory prize will be awarded to (whoever has the highest academic rating.)
*my answer SC

8)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
I am optimistic enough to believe (that young people will respond to a challenge.)
*my answer SC

9)Select the abbreviation that tells how the italicized noun clause is used.
S-subject, DO-direct object, SC-subject complement, OP-object of preposition
The first thing to consider was (how to find a paying job.)
*my answer DO

The company rules demanded that the monthly bills be paid before the end of the month.

Our study efforts should focus on whatever subject is most in need of improvement.

S
OP
SC
DO

These are wrong. Please don't post things that you are not completely sure is true. Some people are trying to learn and this is not helping them.

The answer to number 3 is "DO"

a

1) The abbreviation that tells how the italicized noun clause is used is SC (subject complement). To determine this, you need to identify the noun clause and see how it relates to the subject of the sentence. In this case, the noun clause "whatever subject is most in need of improvement" renames or describes the subject "Our study efforts." Therefore, it acts as a subject complement.

2) The abbreviation that tells how the italicized noun clause is used is DO (direct object). The noun clause "what the children wanted to hear" receives the action of the verb "was not." It answers the question "what" and functions as the direct object of the verb.

3) The abbreviation that tells how the italicized noun clause is used is OP (object of preposition). The noun clause "where you left your books" functions as the object of the preposition "discovered."

4) The abbreviation that tells how the italicized noun clause is used is SC (subject complement). The noun clause "that the monthly bills be paid before the end of the month" renames or describes the subject "The company rules." Therefore, it acts as a subject complement.

5) The abbreviation that tells how the italicized noun clause is used is SC (subject complement). The noun clause "What I had been hoping for" renames or describes the subject "I." Therefore, it acts as a subject complement.

6) The abbreviation that tells how the italicized noun clause is used is SC (subject complement). The noun clause "That you overslept" renames or describes the subject "is." Therefore, it acts as a subject complement.

7) The abbreviation that tells how the italicized noun clause is used is SC (subject complement). The noun clause "whoever has the highest academic rating" renames or describes the subject "The valedictory prize." Therefore, it acts as a subject complement.

8) The abbreviation that tells how the italicized noun clause is used is SC (subject complement). The noun clause "that young people will respond to a challenge" renames or describes the subject "I." Therefore, it acts as a subject complement.

9) The abbreviation that tells how the italicized noun clause is used is DO (direct object). The noun clause "how to find a paying job" receives the action of the verb "was." It answers the question "what" and functions as the direct object of the verb.

what i had been hoping for was a scholarship

go learn english they are wrong

You have one right.