3. 连词成句。
(1) is, thinking, hard, he
He
is
thinking
hard.
(2) Billy, a, sentence, too, says
Billy
says
a
sentence
too
too.
(3) little, a, in, lived, boy, house, the
A
little
boy
lived
in the
house
.
(4) have, to, the, again, start, story, we
We have to start the story
again.
(5) mountain, was, there, house, a, on, the (.)
There was a house on the mountain.