In the following sentence, which of the following is used as a gerund or a gerund phrase? my sister was overjoyed about discovering a new hobby.

In the sentence above, "discovering" is used as a gerund.

Explanation:

Gerunds are words that are formed with verbs but act as nouns. Therefore, they can be subjects, subject complements, or objects in the sentence. In this case, the gerund "discovering" functions as the object of the preposition "about". Verbs after prepositions take the -ing form. As this word is derived from a transitive verb, it selects an NP object ( a new hobby).

clerical work ensures that an office runs smoothly. it involves the day-to-day administrative tasks of an office, such as answering phones, scheduling appointments, sending faxes, and filing documents. office clerks and secretaries need to have particularly strong clerical skills.

explanation:

see u later bae lol

caminas makes the most sense here since it means to walk.