How to read from terminal in a script when the stdin is taken from a file?

[Peng Yu]

Suppose a script is called with stdin from a file.

./script.sh < file

Within the script, I want to read from the terminal in which the
script is called. A plain read command will not work, could anybody
let me know what is the correct way to call `read` so that it will
read from the terminal?

Thanks.

-- 
Regards,
Peng