[ Tenses ]
I was surfing the Internet while my classmates ________ to each other.
A. have chatted
B. are chatting
C. will chat
D. were chatting

Random Topics:
Verbs & AdverbsSuffixes and TensesRelative Clauses and Past PerfectPronouns, Sentence Structure, and Figurative LanguageConjunctions - ConnectorsFirst & Second ConditionalWill vs be going toModal AuxiliariesWill and Going toGrammar: Adjectives & PrepositionsOther quiz:
Grammar › ViewHow ________ milk do you want?
A. many
B. much
C. often
Perfect Tense › View
They _______ to the zoo last Sunday.
A. had gone
B. went
C. have gone
D. go