[ Grammar ]
Not until my neighbour had taken off his wig ____ him.
A. that I recognised
B. did I recognise
C. had I recognised
D. when I recognised

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Tenses and Word FormationAdverbs of Manner, Likes and PreferencesAuxiliary VerbsFuture FormsDirect and Indirect SpeechSo Such Enough TooWishesThird ConditionalsWh QuestionsComparativesOther quiz:
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A. Try to notice
B. Relax and rest
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Which sentence is an example of informal writing?
A. I am writing to request your assistance.
B. Can you help me out?
C. I would appreciate your help.
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A. Another
B. Other
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Gerunds and Infinitives › View
_________ a big mountain takes a lot of money.
A. Climbing
B. climb
C. climbs
D. to climbing