[ Pronouns ]
I heard someone at the door but wasn’t sure __________ it was.
A. what
B. which
C. whom

Random Topics:
Gerund, Infinitive, Bare VerbIntermediate GrammarGrammar - Verb FormsVerb ConjugationInfinitiveGRAMMAR - Could / Could notVerbals and GerundsGrammar on ConditionalsConjunctive Adverbs and PunctuationPresent Perfect Simple & Present Perfect ContinuousOther quiz:
Demonstrative Pronoun › ViewFill in the blank with the correct demonstrative pronoun.
________ is the site of a shipwreck. (Far)
A. This
B. That
C. These
D. Those
Grammar and Vocabulary › View
What do you call the place where you see paintings , sculptures or ancient objects?
A. Pharmacy
B. Museum
C. Hospital
D. Art Gallery
Grammar › View“Yeah, I’ve been to Greece.”. My friend told me that he ________ to Greece.
A. been
B. had been
C. was
Vocabulary › View
More than a billion people all over the world are under the threat of desert .
A. ncrease
B. expansion
C. development
D. extension