[ Noun Clause ]
… is unacceptable.
- What do they always do in the classroom or lab
- What they always do in the classroom or lab

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a, an, the, zero articleQuestion Tags in Verb TensesArticles & PrepositionCompound Nouns and Compound Adjectives QuestionsWho am I?Should, Should not haveUsed to & would & Past SimpleAdverbVerb to haveHomophone & HomonymOther quiz:
Conjunction › ViewWhat type of conjunction is ‘neither…nor’?
A. subordinating
B. correlative
C. conjunctive adverb
D. coordinating
Grammar and Vocabulary › View
I know how to use this computer because I …… to me at the store.
A. was explained it
B. had explained it
C. had it explained
D. have been explained