_____ from the top of the hill, the lake is just like a mirror.
The little girl was unhappy_________her picture-book broken.
.—Are my clothes too casual? —No. You can go_________you are.
Please turn down the music, _________our neighbors next door will be disturbed.
In summer, food will go bad if_________in room temperature.
.QQ, _________you can chat with your friends, makes communication easy.