[ Grammar ]
It is very simple to _________ this machine.
A. to use
B. used
C. use
D. using
Select your answer:
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Adverb of Time › ViewI will call you _______ as I finished my meeting.
A. tomorrow
B. now
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Grammar › View
Besides children, many adults also get ____ Halloween.
A. tired of
B. bored with
C. excited about
D. worried about