[ Tenses ]
He ______ code for hours before he finally fixed the bug.
A. had been writing
B. used to write
C. wrote

Random Topics:
Action, Helping & Linking VerbsPaired ConjunctionWill & Be going toPhrasal VerbsVerb to havePast Simple VS Used toIntermediate PrepositionsAdjectives and AdverbsModals: Possibility, Necessity, ExpectationComperative and SuperlativeOther quiz:
Adverbs › ViewWhich word in the sentence ‘The car moved slowly’ is an adverb?
A. car
B. the
C. moved
D. slowly
Identifying Sentence Types › View
We had enough time to get a coffee before class started.
A. Simple Sentence
B. Compound Sentence
C. Complex Sentence
Modal Verbs › ViewYou………………. apologise; it’s not necessary.
A. mustn’t
B. may not
C. don’t have to
D. doesn’t have to
Modal Verbs and Gender Nouns › View
She ___ sing very well when she was younger.
A. couldn’t
B. could
C. was
D. were
