Puzzling grammar questions

[مستر/ عصام الجاويش]

Puzzling grammar questions
1-Find the mistake in the following sentence, then write it correctly:
*. It's amazing to see a heart transplant operation doing.
2. Choose the correct answer :
* For how long……this mobile? Aren't you going to buy a new one?
a) do you have b) have you got c) have you had

زملائى الاعزائى هذه الجمل وردت فى احد الكتب الخارجيه فى الوحده الاولى ماهى افضل اجابه من وجهه نظركم؟