[ Grammar ]
when our headmaster _______ the door,he _____ a snake is behind the door
A. opened,saw
B. open,saw
C. opening,saw
D. has opened,see

Random Topics:
Pre-intermediateAdverbs of How Something is DoneNoun ClauseHas Got & Have GotCan/CouldSynonym and AntonymSubject Verb Agreement and Verb TensesWish SentencesTenses and QuestionsSpeech TensesOther quiz:
Grammar › ViewLet’s go to a restaurant with _______________ price.
A. cheaper
B. the cheapest
C. cheap
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Christon and Gautam ___________ a horror movie last night.
A. watch
B. watched
C. watching
D. watches
Grammar › ViewIf I had more time, I ________ do more exercise
A. want to
B. would
C. will
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At what age did you learn _____?
A. to drive
B. driving