[ Tenses ]
They heard a noise _____ they were learning Chemistry.
A. when
B. while
C. before
D. after
Select your answer:
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Tag QuestionShould and Shouldn'tTenses: Present simple, Past Simple, Future SimpleTenses and Time MarkersWill and Will notNouns and VocabularyPhrasal Verb and ModalWriting and Modal AuxiliaryPossessive Adjectives & Possessive Pronounsused to, be used to, get used toOther quiz:
Vocabulary & Grammar › View. What is the role of a “designer”?
A. To study history
B. To create plans for objects or structures
C. To write stories
D. To teach students
Vocabulary › View
Happy is to joyful as sad is to:
A. Cry
B. Lonely
C. Angry
D. Unhappy