[ Grammar ]
Who … the window?
A. open
B. opened
C. did opened

Random Topics:
Modals Deduction: cant /mustModals and AdviceKinds of SentencesPresent Tenses and VocabularyModal, Causative Verb & Elliptical StructureAdverbs & to beGrammar - must & have toSimple Past ContinuosFuture Continuous, Future Perfect and Future Perfect ContinuousComperative and SuperlativeOther quiz:
Grammar › ViewIt ___ too hot in this room. Let’s turn on the fan.
A. is
B. are
C. was
D. were
Modal Verbs › View
She __________ eat vegetables.
A. must
B. mustn´t