He found the front door open although he ... it ...

[ Perfect Tenses ]

He found the front door open although he … it before.

A. had locked

B. has locked

C. will have locked

Select your answer:

Random Topics:
Modals and Semi-Modals Adverbial Clause, Noun Clause Noun, Verb, Adjective Descriptions Prepositions of Time & Place TOEIC Grammar Time Clause Sentence and Fragment Wishes & Reported Speech

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This is valuable ……………. chair which dates back to the eighteenth century.

A. traditional

B. old-fashioned

C. antique

D. ancient

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I think she is ____ praised for her essay.

A. right

B. rightly