This is a common mistake ____ students.
A. between
B. over
C. among
D. about
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My father began to work ____ a bus driver when he was twenty years old.
A. for
B. to
C. at
D. as
_____ hearing the news, I was wild ____ joy.
At, in
B. On, with
C. After, by
D. /, over
I don' t think Xiao Li is ____ the other students ____ mathematics.
A. after, on
B. after, with
C. behind, in
D. behind, at
Nobody knows it ____ me.
A. except for
B. except that
C. besides
D. but