[ Grammar ]
We ________virtual classes these days.
A. attends
B. are attending
C. were attending
D. attended

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Subject Verb Agreement; Indefinite PronounsMoods of GrammarParticiple Clauses & Cleft SentencesPast and Future TensesAdverbs of DegreeModals and ConditionalsHelpful Phrases Modal Verbs of ObligationTOEFL Adjective and AdverbAdjectivesOther quiz:
Simple Present Tense › View___________ your children go to school?
A. Does
B. Do
C. Is
D. Are
Vocabulary › View
It is difficult to _______________ all of the different grammar rules for different languages.
A. Notable
B. Contribute
C. Recognize
D. Memorize