[ Adverbial Clauses ]
He was writing to his friend when he ______ a noise.
A. was hearing
B. heard
C. had heard
D. hears

Random Topics:
Used to - Would - TensesWH Questions and Simple Past TenseConjunctive Adverbs and PunctuationSimple Verb TensesModal PerfectPast Narrative TensesPaired ConjunctionGrammar and Sentence StructureAuxiliary VerbsWish / If only ( Present)Other quiz:
Present Simple and Present Continuous Tenses › ViewI … (not feel) well at the moment. I need to take a rest.
A. do not feel
B. am not feeling
C. is not feeling
D. does not feel
Tenses › View
They (take) a boat trip around the islands next holiday.
A. took
B. will take
C. takes
D. take
Grammar › ViewLyla should be happy to get his call
A. rational
B. permission
C. capacity
D. suggestion
Modals › View
I…..sign the forms before I can officially start work on Monday.
A. had to
B. has to
C. have to
D. need