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

Random Topics:
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:
Vocabulary › View______ is a chemical reaction between substances, which usually includes oxygen and produces heat and light.
A. Combust
B. Combustion
C. Combustible
D. Combusted
Grammar & Vocabulary › View
. A public limited company is one whose ___________ are listed on a stock market. In other words, ordinary people can buy and sell shares in the company.
A. firms
B. liability
C. shares
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
