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If you choose not to receive those emails, please let us know by ____ us a message.

A. sends
B. to send
C. sending
D. sent

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We are responsible for the installation and repair of the ____.

A. equips
B. equipment
C. equipted
D. equiping

If you find any product that is ____ than ours in other stores, please contact us.

A. expensive
B. not cheap
C. more cheap
D. cheaper

Detailed preparation must be __________ before you sign a contract.

A. talked
B. looked
C. carried
D. done

Do not __________ me to help you unless you work hard.

A. expect
B. depend
C. hope
D. think