One of the birds _________ flown away.
A. has
B. had
C. have

Random Topics:
Modals and ConditionalsGrammar: Adjectives & PrepositionsRelative Clauses and etcModals: Possibility, Necessity, ExpectationGrammar: Syntax1st ConditionalGrammar ModalsModal and Phrasal VerbsConjunctive Adverbs and PunctuationNoun / PronounOther quiz:
Preposition › ViewFor about 150 million years, the predominant land animals ……… the Earth were the dinosaurs, all of which were very different ……… any of the land animals known today.
A. through/like
B. around/for
C. on/from
D. upon/as
Conditional Sentences › View
If you had tried your best, you ……………………. disappointed about the result now.
A. won’t be
B. wouldn’t be
C. wouldn’t have
D. wouldn’t have been
Grammar › ViewChoose the correct verb from the choices
All stories by Hans Christian Andersen (is, are) children’s stories written in the nineteenth century.
A. are
B. is
Subject Verb Agreement › View
Because individuals can express their opinions and engage in conversations through comments or blog posts, social media ______ more people feel involved in politics and entertainment.
A. helps
B. help
