[ 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:
Present Tenses › ViewI have read this chapter in my chemistry text three times, and still I ______ it.
A. don’t understand
B. have understood
C. understand
D. haven’t understood
TOEIC › View
One of the most important characteristics of a good manager is that she takes_______for her own mistakes.
(A) response
(B) responsible
(C) responsibly
(D) responsibility
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