选择It will be sad not to see you during the Christmas holiday( ) f_英语解答

选择It will be sad not to see you during the Christmas holiday( ) families get together.
before?
when?
that?
since?

人气：273 ℃　时间：2019-09-05 09:09:23

解答

when,当圣诞家人团聚的时候看不到你我们会感到很难过的