[ Passive Voice ]
Mr. Green ___ at the University since 1989.
A. Has been teaching
B. Has been taught

Random Topics:
Modal Verbs - ObligationMust / must notCountable & Uncountable NounsWill or Going toConditional Type 1Grammar PhrasesIdiom and TensesConjunctionTenses - Irregular VerbsQuantifiersOther quiz:
Reported Speech › ViewI asked Martha _______ to enter law school.
A. are you planning
B. was she planning
C. if she is planning
D. if she was planning
Grammar › View
He (not live) ________ in HoChiMinh city.
A. aren’t lives
B. doesn’t live
C. don’t live
D. isn’t lives
Second Conditional › ViewIf you (be able to) ______________ sing well, what kind of song ______________________ (you/perform)?
A. were able to/ would you perform
B. would be able to/ did you perform
Grammar › View
mail + man=
A. man
B. mail
C. mailbox
D. mailman