While he ______ the window above the door, he ______ off the chair and broke his leg.
A. was cleaning/ fall
B. cleaned/fell
C. was cleaning/fell
D. was cleaning/was fall

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Grammar and IdiomsWishesProgressive Perfect and Simple Verb TensesAdjectives and PrepositionsContrastive ConjunctionVocabullary TestPronounciation and GrammarModal Auxiliaries and Similar ExpressionsActive-Passive VoicesComplex SentencesOther quiz:
Tenses › ViewSome officials still need ……………. of the importance of separate playing fields for young football and baseball players.
A. convince
B. to be convinced
C. be convincing
D. have convinced
Grammar › View
Fix this sentence: “i want to go to the grand canyon in december.”
A. i want to go to the Grand canyon in december.
B. I want to go to the Grand Canyon in December.
C. I want to go to the grand canyon in december.
D. i want to go to the grand canyon in December.
You _____ not leave the class without informing the teacher.
A. must
B. shall
C. might
D. could
Pronoun › View
________like to collect stamps
A. Her
B. His
C. Ours
D. He
E. My