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Use Present perfect continuous or present perfect:

a) I ________________________ (wait) for the doctor for one hour, but he ______________________ (not/ call) me yet.

b) My mom _______________________ (drive) for three hours and we still haven’t arrived yet.


Resposta :

a) I have been waiting for the doctor for one hour, but he hasn't called me yet.

b) My mom has been driving for three hours and we still haven’t arrived yet.