His friends go to Beidaihe by train _______vacation every year.
#48849
A
at
B
of
C
on
D
in
推荐题目
Where is Jane? Everyone is here_________ her.
#49298
A
besides
B
with
C
about
D
except
 ---Boys, don’t swim in the Fengcheng River!---Why not? Isn’t it deep enough _____?
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A
to swim across
B
to swim in
C
swim on
D
swimming on