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The doctor must be _______ 24 hours a day, 7 days a week in the boarding school.
#25574
A
on call
B
by hand
C
in sight
D
on spot
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I haven’t seen you for a couple of days . What have you been up ____?
#28535
A
in
B
to
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with
D
for
His uncle returned home ___ Feiday morning.
#28086
A
in
B
at
C
on
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/
Everybody was touched _________ words after they heard her moving story.
#25225
A
without
B
beyond
C
of
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in
I like novels very much, ______ , novels written in English.
#27065
A
in common
B
in return
C
in brief
D
in particular
Sam always pronounces my name wrong.  Do you think he does it ______ ? 
#25559
A
on purpose
B
at present
C
at an end
D
right away