I saw LiMing ______ near the river on my way home just now .

Now the Chinese government has made laws ________ the birds living there. 

---What should we do to fight A/H1N1 flu?---We should wash hands often, avoid ______ to crowded places and so on.

Your hair is too long. You’d better have it ______.

—Why do you speak in ___ a loud voice?    —Because I want to make myself ___ clearly.