[ Tenses ]
How long …… at that university? I swear you started three years ago, but you still haven’t graded
A. are you studying
B. did you study
C. were you studying
D. have you been studying

Random Topics:
If Conditional Zero and OneGerund, Infinitive & ModalsAuxiliary VerbsAdverbs, Prefixes, and SuffixesZero Conditional SentenceRun-On SentencesVerbs of movementGrammar TOEFLPassive Voice - Past SimpleTransitionsOther quiz:
Sentence Structure and Pronoun Antecedent › ViewProfessor Smith wanted to find out if the students passed ___ tests.
A. his
B. them
C. their
D. us
Vocabulary › View
Despite his ___________ for public speaking, he reluctantly agreed to give a presentation at the conference.
A. caustic
B. nuance
C. avid
D. wrest
Prepositions › ViewKathleen apologized ________________ her brother’s poor behaviour.
A. For
B. In
C. Off
D. At
Modal Verbs › View
The oral interview in French____________ difficult. Few students passed it.
A. must have been
B. can’t be
C. can’t have been
D. must be