[ Grammar ]
There are three bags on the shelf. Could you tell me ……one is yours?
A. What
B. Which

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-ing form and the to-infinitivePresent Simple & Present Continuous TensesGrammar PhrasesClauses and ConjunctionsQuestion TagsAdjective SuffixesDescriptionsSimple PastPresent Simple & Present ContinuousGrammar ClausesOther quiz:
Present Simple and Present Continuous › ViewMy dog (eat) __________________ now.
A. eats
B. is eating
C. are eating
D. eat
Grammar › View
Will … be any homework tonight?
A. their
B. they’re
C. there
D. them
Grammar › ViewA: Which time is better for you, 8:00 or 3:00?
B: 3:00. I’m ___.
A. more busy at 8:00
B. busier at 8:00
C. busy than at 8:00
Grammar › View
Someone …………. the door now. We are not in the living room.
A. are knocking
B. knock
C. is knocking
D. knocked