[ Past Tenses ]
We were tired as we ________ for more than four hours.
A. walked
B. were walking
C. had walked
D. had been walking

Random Topics:
Auxiliary ModalInfinitiveSo, Such, Many, MuchParticiple AdjectivesSentencesAdjective OrderTypes of Simple SentencesVerb Forms and PrepositionsSuffixes (ing-ed) SentencesPaired ConjunctionOther quiz:
Vocabulary and Grammar › ViewJason wants______ to the new album by Dua Lipa. He loves her music!
A. listening
B. to listen
C. listen
Unreal Conditionals › View
If you had come to classes more often, you __________ better in the exams.
A. had done
B. did
C. would have done
D. will do
Prepositions › ViewHe was successful ________ his job.
A. in
B. with
C. of
D. to
Grammar › View
On Saturday, Joe brought Fido a bone from the doggie boutique.
The direct object is ________________.
A. Saturday
B. Fido
C. Bone
D. Boutique
E. None of the above
