[ Grammar ]
I ______ talking on the phone.
A. is
B. are
C. am

Random Topics:
Future - will / going to / present continuousPresent & Past TensesConjunctivesGrammar & VocabVerb TensesPrepositions & Prepositional PhrasesPast ParticiplesGrammar for TOEFLOpinion / AgreementGrammar ClausesOther quiz:
Grammar › ViewI ……………………. (do) my homework yesterday.
A. did
B. do
C. were doing
D. doing
Modals in The Past › View
My bicycle is broken now. I ___ ridden it down the stairs.
A. musn’t have
B. might have
C. shouldn’t have
D. can’t have
Adjective › ViewNagoya is an example of a ________ city.
a.modern Japanese
b.Japanese modern
Tenses › View
It ________________ raining since morning.
A. is
B. has been
C. was
D. have been