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

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Conjunction › ViewDo you speak English _____________ Spanish?
A. or
B. also
C. if
D. however
Grammar › View
My sister’s duty (be) ———— washing up
A. is
B. are
C. be
D. being
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
