They are always ready _______ helping.
#50888
A
for
B
of
C
to
D
in
推荐题目
Leaves fall _______piles ________the ground
#46979
A
into; upon
B
upon; into
C
onto; off
D
into; onto
Mr. Lee arrived      Beijing       May 6th      about 12:00 .
#46095
A
in; on; at
B
at; on; on
C
for; in; at
D
in; in; at