[ Subject-Verb Agreement ]
Ninety percent of the work ______.
A. Have been done
B. Has been done
C. Have done
Select your answer:
Random Topics:
TOEFLModals TensesSimple Present TensePresent Perfect Simple vs ContinuousPast Simple and Past Continuous TensesPunctuationsCommon Grammar Mistakes and Spelling TipsPhrasal VerbsComparisionOther quiz:
Tenses › ViewThey ………. the lesson well every day.
A. understands
B. understanding
C. understand
D. understood
Modal Verbs › View
Tom went on and on apologizing about it, which was quite unnecessary.
A. Tom can’t have apologized. I quite understand.
B. Tom shouldn’t have apologized. I quite understand.
C. Tom wouldn’t have apologized. I quite understand.
D. Tom needn’t have apologized. I quite understand.