[ 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:
Grammar › ViewIf Cuong had run ________ , his brother could have caught him.
A. fast
B. faster
C. the fastest
D. more faster
Grammar › View
Choose the correct sentences for infinitives
A. He fails to get to the airport on time
B. I’m pleased to see you again
C. We can admitting its her faults
D. You better go on a camping tomorrow
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
