[ 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:
Conjunctions › ViewThe Grand Canyon is in Arizona, _______ the Great Barrier Reef is in Australia.
A. and
B. but
C. so
D. for
Modals › View
Without your help, they ……… a place to live
A. wouldn’t have found
B. should have found
C. may have found
D. can have found
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
