I am optimistic enough to believe that young people will respond to a challenge.
S
OP
SC
DO
The abbreviation that tells how the italicized noun clause is used is DO. The fourth option is correct.
The clause: "that young people will respond to a challenge" is a direct object. This clause cames right after the verb believe which is a transitive verb which requires a direct object to conve a compkete thought that makes sense.
The direc object is a noun phrase denoting a person or thing that is the recipient of the action of a transitive verb
B. He is collecting rare coins.
Answer:
The sentence that contains a present participle of the verb to collect is sentence B.
Explanation:
A participle typically expresses present action with respect to the time expressed by the finite verb in its clause and that is formed by adding the suffix -ing. The present participle is used in the formation of the progressive or continuous tenses. In the sentence above, you can see that the event is taking place now if you add now (see A).
a) He is collecting rare coins now
abhorrence
B.
abscond
C.
catalyst
D.
herbicide