[ Preposition of Time ]
I have my piano class _________ Saturday.
A. on
B. at
C. in
D. (nothing should be added)

Random Topics:
Adverbs of TimeSimple vs Continuous Past TenseGender and GrammarAdverb or AdjectiveTenses and Word FormationPerfect Tenses and VocabularySports VocabularyTypes of SentencesModals and PhrasesNarrative Tenses & ConditionalsOther quiz:
Phrasal Verbs › ViewA: Is Mary asleep? B: Yes. I’d better wake ___. She has a class at nine.
A. her up
B. him up
C. it up
D. them up
Tenses › View
A: Whose is this necklace?
B: I don’t know. I ___ it while I ___ the carpet.
A. found-was cleaning
B. have found-was cleaning
C. had found-cleaned
D. found-had cleaned
If/Unless - Conditional type 1 › ViewYou should not swim in the river ___ you are a good swimmer.
A. unless
B. if
Prepositions › View
Most forms of transportation will benefit _____ autonomous technology.
A. within
B. from
C. in
D. at
