[ Vocabulary & Grammar ]
An engine has many parts, each ______ a different function.
A. performing
B. offering
C. summarizing
D. sampling

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ComparisonCompound Words and SentencesSome & AnySubject and Verbs AgreementGrammar - help/have/let/makePresent Simple: affirmative, negative, interrogativePast Perfect and Past Perfect ContinuousSocial Media VocabularyDefinite, Indefinite and Zero ArticlesAdverbial Clauses of Reason / CauseOther quiz:
Tenses › ViewSteve __________ (play) tennis at every day.
A. play
B. plays
Tenses › View
I (watch) TV at the moment.
A. am watching
B. is watching
C. watch
D. watches
Gerund or Infinitives › ViewDid you remember _______ a cake for Maria’s birthday?
A. to buy
B. buying
Grammar › View
Does the bird have fur?
A. Yes, they do
B. No, It doesn´t
