[ Past Continuous Tense & Past Modals ]
While I … in my room, my sister … home
A. studied / left
B. studied / was leaving
C. was studying / left
D. was studying / was leaving

Random Topics:
Modals of Necessity and SuggestionAdjectives or AdverbsConjunctions - Conjunctive AdverbsGrammar and VocabulariesAdjectivesFuture Continuous TenseSo or SuchAdverb of Frequency and Past Continuous TensePronouns of QuantityComparatives and ConjunctionsOther quiz:
Sentence Adverbs & Third Conditional › ViewChoose the correct sentence adverb to complete the sentence: ‘________, we had to postpone the event due to the unexpected rain.’
A. Finally
B. Initially
C. Eventually
D. Surprisingly
Vocabulary › View
a rocky sandbank or sandbar lying just below the surface of a waterway
A. submerge
B. riffle
C. limber
D. resistance
Grammar › ViewWhat —- if you had a million dollars.
A. will you do
B. would you do
C. would you have done
Comparison › View
The film shown on TV last night was ________ the book written for it.
A. more thrilling than
B. thrillinger than
C. more thrilling
D. the most thrilling
