第2个回答 2020-02-10
When
he
will
come
back
is
not
sure
.
When
he
will
come
back
is
still
a
question
.
When
he
will
come
back
is
the
day
after
tomorrow
.
I
want
to
know
When
he
will
come
back
.
I
don`t
know
When
he
will
come
back
.
The
problem
is
When
he
will
come
back
.
No
one
knows
When
he
will
come
back
.
When
he
will
come
back
makes
us
worried
,
When
he
will
come
back
is
makes
no
different
to
us
.
When
he
will
come
back
is
when
we
will
be
set
free
.
主语从名
when
he
will
go
home
is
known.
It
is
not
known
when
he
will
go
home.
宾语从句
I
don't
know
when
he
will
go
home.
时间状语从句
I
saw
him
when
he
went
home.
定语从句，修饰在主句中作状语的时间。
I
was
reading
a
story
yesterday
afternoon
when
I
heard
the
knocking
on
the
door.
主语从句
when
he
will
go
home
is
known.
It
is
not
known
when
he
will
go
home.
When
he
will
come
back
makes
us
worried.
It
remains
unknown
when
they
are
going
to
get
married.
宾语从句
I
don`t
know
When
he
will
come
back
.
I
want
to
know
When
he
will
come
back
.
That
depends
on
when
he
shall
come
back.
表语从句
The
problem
is
When
he
will
come
back.
What
I
am
worried
is
when
he
will
come
back.
同位语
I
have
no
idea
when
he
will
come
back.