[ Present and Past Tenses ]
. What (is – am – are) you doing?
A. is
B. am
C. are

Random Topics:
InfinitivesIndirect SpeechHow many / How much - Is there / Are thereAdverbs of How Something is DoneTenses and ConclusionsModifiersBasic TensesComparative AdverbSimple vs Continuous Past Tensewould should couldOther quiz:
Gerund and Infinitive › ViewI regret ………………. you that the train was canceled.
A. inform
B. to inform
C. informing
Present Perfect Tense › View
She’s … the boss for 6 months now.
A. Has
B. Be
C. Been