[ Tenses ]
When Carol _________ dinner, someone __________ on the door.
A. was cooking/ was knocking
B. was cooking/ knocked
C. cooked/ knocked
D. cooked/ was knocking
Select your answer:

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Conjunctions and TransitionsCompound AdjectivesComparative and Superlative AdjectivesAction, Helping & Linking VerbsTenses and StructureGrammar (either..or.. and neither..nor..)Grammar: so and suchInfinitivePast Perfect and Past Perfect Continuous TenseGrammar and UsageOther quiz:
Vocabulary and Grammar › ViewWhich word means “almost the same”?
A. other
B. similar
C. unique
D. beautiful
Grammar › View
Ask the right question: The market opens at 9am
A. What time market opens?
B. What times does the market open?
C. What time is the market open?
D. What time do the market open?
