[ Vocabulary & Grammar ]
. Students nationwide have switched to _____ classrooms since the pandemic broke out.
A. tedious
B. virtual
C. self-driving
D. autonomous

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Present Tense vs Present ContinuousGrammar: SyntaxNounsCan vs be able toas...as, comparatives, superlativesPersonal PronounsArticles and NounsFirst Conditional SentencePerfect Progressive TensesVocabulary and TensesOther quiz:
Grammar & Vocabulary › ViewChoose the correct form of the adjective in parentheses.
My teacher told me to be (more, most) careful and check my answers.
A. more
B. most
Tenses › View
Identify the tense used in the following sentence: The students will have been preparing for the exam for two hours.
A. Present perfect continuous tense
B. Past perfect tense
C. Past perfect continuous tense
D. Future perfect continuous tense
