[ Past Continuous Tense ]
The fire alarm rang … the boarding school students were sleeping.
- while
- when

Random Topics:
Modals of Speculation and DeductionZero and First ConditionalsSentence Structure and Grammar RulesGrammar & TensesVocabularyModals AuxiliaryBe going to / WillNoun Phrases and Verb PhrasesPossessive Adjectives & Possessive PronounsProgessive TensesOther quiz:
Tenses › ViewA: Do you know where John is?
B: I … John this week.
A. have not seen
B. don’t know
C. didn’t know
D. haven’t saw
E. hasn’t seen
Future Tenses › View
Susan —– for lunch afternoon.
A. meets
B. is meating