[ Past Perfect Tense ]
It _________ before.
A. has happened
B. had happened
C. have happened
D. happened
Select your answer:
Random Topics:
Verb to haveRegular and Irregular VerbsGrammar Error Correction (Simple Present Tense)Comparatives - SuperlativeMust or Mus notPast Simple & Past ContinuousPossessive Adjective and PronounModals and AdviceSimple Present and Present ContinuosOther quiz:
Grammar › ViewChoose the word that has the same meaning as the bold word.
The old lady is too weak to carry the heavy bag.
_
A. fear
B. bright
C. strong
D. feeble
Grammar › View
Sharks live ______ the ocean.
A. in
B. under
C. across
D. below