[ Tenses ]
You must ____________ a helmet.
A. wear
B. wearing
C. wears
D. is wearing

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Present Perfect SimpleTenses and ArticlesArticles and QuantifiersThird ConditionalComparison of Adjective and AdverbCohesive DevicesPrepositionWord Form & Verb TenseConditional ClausePast and Past ContinuousOther quiz:
Grammar › ViewClassify the mood of verbs.
The plane will take 8 hours to get to London.
A. indicative mood
B. imperative mood
C. subjunctive mood
Past Tenses › View
I was delighted when I found my keys.
I … for them for hours.
A. had been looking
B. had looked
Grammar › ViewHe couldn’t concentrate ………………. his work, so he went for a walk.
A. on
B. in
C. about
D. at
Grammar › View
I live in ___ apartment. ___ apartment is big.
A. a, the
B. an,the
C. the, the
