He helped his mother clean the rooms and then ________ his homework yesterday afternoon.
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I’d like ________ TV, but my father enjoys _________ newspapers.
A. watching, reading
B. seeing, see
C. to watch, reading
I found it _______ to work out this math problem in one minute.
A. easy
B. quickly
C. hardly
There______ many students in the classroom.
A. are
B. is
C. be
We like listening _______ music.
A. on
B. to
C. in