Hi there BasimAl lawati.
Thank you for your post and your interest in Surface Pro. In regards to your question, there is not an Arabic English Bilingual cover available as the keyboard layouts are associated with the regions in which they are sold.
I recommend staying tuned to Surface.com for the latest details on product availability. An alternative would be to use a keyboard compatible with Surface Pro that you can connect via Bluetooth or USB.
I hope this is helpful. Please let us know if you have more questions.
Kindest regards