[ Grammar and Vocabulary ]
A fax machine__________ send or receive letters quickly.
A. is used for
B. used to
C. is used to
D. used for
Select your answer:

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Grammar › View… a secret.
A. Make
B. Earn
C. Keep
D. Take
Grammar › View
It’s important to buy and use items that _____ have a bad effect on the environment.
A. will
B. won’t
