Russ' Do It Yourself Home Workshop

If you somehow start typing in Chinese (and you don’t want to), try pressing the left Alt key and the left Shift key together to cycle through the input languages.  If you have more than one form of Chinese (or other language) installed, then you may have to press these keys several times to cycle through them and get back to English.

If you don’t want this to happen, then go to your language options and remove the offending languages.

One of my laptops is an Asus and it seems to have come with alternate languages installed "out-of-the-box."