[ Grammar ]
According to some theories, the Giza Pyramids ___ using huge mamuts to move the rocks.
A. might have been built
B. might have been builded
C. might had been built
D. might have being built

Random Topics:
So or SuchSubject-Verb AgreementPassive with ModalsPast Perfect SimplePresent, Past, and Future TimeRelative Clauses beginning with PrepositionsSimple Present & Present ProgressiveThe Past SimpleConjunctions and TransitionsConjunctive AdverbOther quiz:
Prepositions of Time › ViewI have English classes ____ 8:00 a.m.!
A. at
B. in
Wh- Questions › View
-Assistant:____________do you live?
-Marge: I live with my family in Springfield
A. When
B. Who
C. Where
D. How
Grammar- Later/Latter › ViewJeremy got to ____ than Mary did.
A. latter
B. later
Grammar › View
Dana _____ up at 6:30 this morning.
A. wake
B. woke
C. walk
D. walked
