[ Past Perfect Tense ]
I went to bed after I ___________________ off the television.
A. had switch
B. switched
C. had switched
D. has switched

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Verb + Infinitive or GerundModal AuxiliariesPronouns/ Present TenseTime ConjunctionsAdverbial Concession ClausesModals in the PastTenses and ArticlesCommunicative GrammarDegree of ComparisonIn/On/At + TimeOther quiz:
Vocabulary and Grammar › View. In America they use dollars, so make sure you _____ currency before leaving the UK.
A. exchange
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Which word in the following sentence is conjunction?
Mike has a pet rabbit and a dog.
___
A. Mike
B. a
C. rabbit
D. and