1) Somebody
has to speak (for) the poor unemployed.
2) We'd rather stay at home
and watch TV. - Please speak (for) yourself, I prefer to go out.
3) If
you have a better idea, please, speak (out).
4) Will you speak
(up), please: it's rather noisy in here.
5) The number of people who
came to the show spoke (for) itself: the show was a great seccess.
6) If there is anything you don't like about this plan, do speak
(out).
7) Liz spends too much time in front of the computer. I have
spoken (to) her two or three times, but nothing changes.
8) Today
I'm speaking not only (for) myself but (for) all my classmates and
friends.