[ Grammar ]
They write explanations of their work which can seem unnecessary.
A. Adjective
B. Adverb

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Past Simple & Past ContinuousArticles and DeterminersGrammar and StructureActive and Passive voicePresent Perfect - Just, Already, YetPast Simple VerbsGerundNumbersModalConditionalsOther quiz:
Verb Phrases › ViewWhat tense is the verb?
We will be taking another quiz on Friday.
A. past
B. present
C. future
Grammar › View
Susan and Mike … not listening to music in this moment.
A. do
B. does
C. are
D. is