I __________ (usually, double-check) my front door before leaving for ...

[ Adverb of Frequency and Past Continuous Tense ]

I __________ (usually, double-check) my front door before leaving for work

A. usually double-check

B. usually double-checks

Select your answer:

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Subordinating Conjunctions Used to Present Simple and Continuous Past Continues Tense Modals and Advice Modals and Semi-Modals Present Simple or Present Continuous Prepositions of Time and Place Unreal Conditionals

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