His mother is friendly____ us.
#48964
A
of
B
to
C
on
D
at
推荐题目
It’s nice ____ you to tell me the news because it’s very important _____ me.
#48356
A
for, of
B
of, for
C
for, for
D
of, of
Sound travels ______ air ______ a speed of about 340 metres per second.
#47987
A
over; in
B
through; at
C
by; at
D
through; over
A tsunami(海啸) happened in some southern Asian countries________ December, 2004.
#50249
A
at
B
on
C
in
D
by
His flat is ________the _______floor in a building on a busy street．
#49549
A
in, nine
B
in, ninth
C
on, nine
D
on, ninth