[ Subject-Verb Agreement ]
Not only the students, but also the teacher (has, have) been unhappy.
A. Has
B. Have

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Simple Past - Irregular VerbsCommon Grammar Mistakes and Spelling TipsCorrelative conjunctionsGrammar and PrepositionGrammar - ConnectorsPresent Forms and Narrative TensesVerb Tenses and UsageModals - Have to or ShouldPreposition (at,in,on)Wish SentencesOther quiz:
Grammar › ViewI have art class on Monday and Tuesday. I have to do art work __________ a week.
A. once
B. twice
C. every day
D. three times
Grammar › View
Professor Brown’s presentation was very easy to follow. As a result, only ……………students had questions at the end.
A. a few
B. a little