[ Grammar ]
They couldn’t drive home because they _________ the keys in the car.
A. had locked
B. locks
C. locked
D. has locked

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To infinitive - GerundTenses, Tag Questions, Phrasal VerbsVerb Forms and PrepositionsDefinite ArticlesPrepositions & Prepositional PhrasesCardiology ServicesArticles with SubstancesFood VocabularyHow much or How many?Present/Past/Future Continuous TenseOther quiz:
Synonym › ViewWhich of the following is the synonym of “wonderful” ?
A. amazing
B. sunny
C. smile
D. warm
Continuous and Perfect Tenses › View
How many books __________ this year?
A. are you reading
B. did you read
C. have you read
Vocabulary › ViewTo approve and adopt an official document.
A. ratify
B. veto
C. appeal
D. submit
Conditional › View
When do we use first conditional?
A. Imaginary situations
B. Probable future situations
C. Situations in the past connected to the present
D. When something happens first
