No one knew how to open the door. A. correct ...

[ Indefinite Pronouns ]

No one knew how to open the door.

A. correct

B. not correct

Select your answer:

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Past Continuous Tense Pronoun vs. Pronouns Future Perfect Continuous Tense Grammar Modals Have to/Has to Wish / If only ( Present)Prepositions - Conjunctions V-ing/to-V Grammar: is/are/was/were

Other quiz:

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As an excuse for being late, she _____ a whole story.

A. kept up

B. put up

C. looked up

D. made up

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Please don’t call me. I _____ at nine o’clock tonight.

A. will be sleeping

B. will be sleep

C. will sleep

D. sleep

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