[ Prepositions of Time ]
I have online classes ___ Friday.
A. at
B. on

Random Topics:
Grammar - Capitalization and Possessive NounsBe Going To vs. WillGerunds as objects of prepositionRelative PronounPhrasal verbs and Prepositional PhrasesComparative AdjectivesZero ConditionalAdjectives with -ED and -INGVerb PhrasesPresent / Future / Present Progressive / non Action VerbsOther quiz:
Vocabulary & Grammar › ViewShe turned him down for a date so he could only _____ stare at her from afar.
A. pessimist
B. puncture
C. prosecute
D. wistful
E. precaution
Grammar › View
Science, especially physics and chemistry, ________ my favourite subject.
A. had been
B. have been
C. is
D. are
Past Simple › ViewThe car _____________ (stop) in the traffic sign.
A. stopped
B. stoped
C. stop
D. didn’t stop
Infinitive and Gerunds › View
It’s easy _________ to the city centre from here.
A. Getting
B. Get
C. To get