连词成句（本题有5小题，每小题1分；共计5分）
with, good, are, we, people, old
                                                          .
to, have, go, I, before 10:00, bed, to
                                                          .
walk, time, elephants, for, a, can, long
                                                          .
so, again, them, see, I, happy, am, to
                                                          .
is, her, my, playing, in, the, piano, room, sister
                                                          .