.A ________may be given ____means of flags, lights, and guns.
#69309
A
sign; by
B
signal; in
C
signal; by
D
sign; in
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I have to amuse myself by looking after my 10－month baby since I have nothing important to work________these days.
#28676
A
in
B
during
C
on
D
for
We have to give the users something new ________ what we’ve already offered, which is the only way to broaden the appeal of the website.
#26614
A
regardless of
B
in addition to
C
in exchange for
D
according to
My mother is against my suggestion while my father is__________ it.
#25975
A
in need of
B
in face of
C
in favor of
D
in place of
For a long time, he hesitated whether he should tell us ____ what had happened．
#27121
A
at dusk
B
at length
C
at present
D
at stake