[ Grammar ]
He … taking a bath when you knocked on the door.
A. is
B. was
C. were
D. has

Random Topics:
DEGREE COMPARISONParts of Speech and Compound SentencesConditional and Mix Conditional SentencePassive VoicesTenses, Tag Questions, Phrasal VerbsAbstract NounsFrequency AdverbsDegrees of AdjectivesAdverbial Clause of ConcessionSubordination ConjunctionsOther quiz:
Present Continuous › ViewOur mother _______________the table at the moment.
A. is set
B. is setting
C. sets
D. are setting
Modal Verbs › View
How old do you think Peter is? – I just looked at his driver’s license. He ______ 33.
A. might be
B. may be
C. must be
D. should be
General Knowledge › ViewWho painted the Mona Lisa?
A. Sandro Botticelli
B. Michelangelo
C. Leonardo Da Vinci
D. Raphael
E. NONE OF THE ABOVE
Grammar › View
Mark _____________ (study) biology since high school. (PRESENT PERFECT TENSE)
A. has studied
B. had studied
C. will have studied
