Yikes: Interjection. A word to express emotion. In this case kind of frightened. Â
Huge: Adjective  specifies the quality size or amount of nouns or pronouns. In this case very big.
Test. Â Common noun. These are generic names of things, animals, persons or places.
On Friday. Preposition, specifies location (place) or location in time.
Barely. Â Adverb, also used to describe adjectives verbs or another adverb. In this case barely is describing the verb study.
Studied. Simple Past tense of verb Study. Â