Our garden is currently producing a large quantity of green beans.
My brother likes to stir fry so I suggested that he cook some of
them in a stir fry. He does not want to because he is afraid that
they would not get fully cooked or that he could not tell when they
were fully cooked.

What is the easiest way for him to get green beans fully cooked in
the wok without over cooking them? Thank you in advance for all
replies.
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My cat really loves me. When it is cold at night he lies right
up against me in the bed to help keep me warm.