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
推荐题目
Everybody was touched _________ words after they heard her moving story.
#25225
A
without
B
beyond
C
of
D
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
