[ Grammar ]
Choose the correct answer.
“Dr. Chang teaches math. He is an excellent teacher. He…..math at this school for more than 25 years.”
A. teach
B. have been teaching
C. taught
D. has been teaching

Random Topics:
Linking WordsWould/would like - affirmative/negativeVerb to bePast TensesParticiple AdjectivesPossesive Pronouns and Modals of AbilityVerb to haveDefinite ArticlesGrammar - NounsPersonal PronounOther quiz:
Tenses › ViewI ___________ across the street yesterday.
A. will run
B. runs
C. runned
D. ran
Vocabulary › View
There is a clown in my friend’s birthday party.
He is very … .
He makes all children laugh and happy.
A. angry
B. noisy
C. funny
D. quiet
Present Perfect Tense › ViewThe book (sell) ________ millions of copies so far.
A. sold
B. has sold
C. is selling
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care ___ your appearance
A. of
B. for
C. about
