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