[ Grammar ]
Yesterday evening, we ___ dinner when the doorbell rang.
A. are cooking
B. is cooking
C. was cooking
D. were cooking

Random Topics:
Time PhrasesNouns & PronounsPreposition and ConjunctionVocabularyTensesPresent Simple and ContinuousPronouns, Verb, ConjunctionPresent Perfect Continuous TensePast Continuous Tense & Past ModalsAdjectivesOther quiz:
Grammar › ViewWe have to go to bed when the clock strikes ten o’clock.
A. complex sentence
B. compound sentence
C. simple sentence
Gerund and Infinitive › View
My parents don’t mind you ____ in our house.
A. stay
B. to stay
C. staying
