His friends go to Beidaihe by train _______vacation every year.
#48849
A
at
B
of
C
on
D
in
推荐题目
Thanks _____ the photo of your family.
#49226
A
of
B
for
C
it’s
D
and
I do not eat sweet snacks ________ meals.
#49508
A
in
B
on
C
of
D
between
He gave me clothes _____ food.
#46204
A
as nice as
B
as long as
C
as well as
D
as soon as
It’s thoughtful ________you to prepare the film________ for our show. 
#48177
A
for, in the 1960s
B
of, in the 1960
C
for, in 1960s
D
of, in the 1960s