(2) One of the essential skills the dog learns at school is (to / the street / cross / how).
(3)  The handler and the dog  (cross / about /are / to)  street. 
(4) At the next stop, what was happening, crew members led the woman off the train. 
(5) Dogs become guide dogs  the result of training. 
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(6 )The handle attached to the harness is firm,  so the handler can ( turn / feel / the dog ) 
 
(7) If the cars approaching, the dog waits (gone / the danger / until / is ) and then  the street.
(8) Petting and talking to the dog  its concentration.
(9) Guide dogs help the handlers shake any feeling of   (isolation / them / by /people / to / inviting)
(10) Handlers also . (their / a social / consider / dogs / asset) 
 (11) If you want to pet or talk to the dog, . (the handler / for / ask / permission)