[ Grammar ]
Laura felt tired as she _____ for hours.
A. had been walking
B. was walking
C. has been walking

Random Topics:
Linking Words & PhrasesPhrase or ClauseComparatives, Superlatives & EquativesPhrasal Verb and ModalConnectorsGerund and InfinitivesQuantifiers MixAdverbial Clauses of Manner and ResultTenses and ArticlesAction vs Linking Verbs/ Verb PhrasesOther quiz:
Grammar › ViewHe ____ on his essay all day, but he ____ yet.
A. has been writing – has not finished
B. has writing – has not been finishing
C. have been written – have not finished
D. has written – has not been finishing
Conjunctions › View
She has brown hair _ _ _ blue eyes.
A. yet
B. and
C. or
D. but
Gerund Subject or Object › ViewRunning every morning keeps me energized.
A. Subject
B. Object
Modal Verb › View
I was going to write my essay about the British nuclear tests in the Australian Desert, but I ________ the topic when I ________ much information about them.
A. have changed / wasn’t able to find
B. had to change / couldn’t find
C. must change / haven’t found
D. might have changed / don’t find
