If you are weak _____ a subject, ______ and asking a teacher for advice can help.
#48299
A
at; working hard
B
in; work hard
C
at; work hard
D
in; working hard
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He will come here _______5:00 _________6:00 this afternoon.
#48581
A
among; and
B
between; and
C
from; to
D
among; or
_________ her mother, she became a famous scientist. 
#46404
A
With the help
B
Thanks for
C
Thanks to
D
As a result
 Look at the library. It's    our classroom.
#47530
A
in the front of
B
on front of
C
in front of
D
on the front of