It’s very convenient ______ us to buy train tickets now because we can buy them either from the station or on the Internet.
#48015
A
to
B
of
C
by
D
for
推荐题目
 Thanks _____ your help.
#47559
A
to
B
of
C
for
D
at
Drinking hot tea______honey is good______a sore throat.
#48178
A
for,at
B
with,at
C
and,for
D
with,for