Las tres inflexiones del verbo TO BE son:
A. am – is – are
B. he – she – it
C. an – the – a
D. a – are – am

Random Topics:
Comparison and ModalsConjunction: Because and SoSentence Structure and ConjunctionsWish, Unless, If sentenceGrammar and VocabulariesPassive Voice - Past SimpleModals, Infinitives and GerundsSimple and Progressive Verb TensesTOEIC GrammarDemonstrative PronounsOther quiz:
Tenses › ViewWhat is the form of the Present Perfect tense?
A. Subject + had + past participle
B. Subject + have/has + past participle
C. Subject + will have + past participle
D. Subject + is + past participle
Modal Verbs › View
Rewrite the sentence using modal verbs:
It is the best thing for him to apologize to his friend.
A. He should apologize to his friend.
B. He might apologize to his friend.
C. He can apologize to his friend.
D. He doesn’t need to apologize to his friend.
Grammar › ViewShe _____________________ alone since she was 18.
A. Is living
B. Has been living
C. Lives
D. Have lived
Tenses › View
Future Perfect: By the time you arrive, I ________ all the preparations.
A. will have completed
B. will be completing
C. am completing
D. will have been completing
