1/ we ..... in our present house ...... five years. a/ have lived / for b/ live/ for c/are living/for d/ have lived/ since 2/ I .... Jack since I .... a student a/ know/ am b/knew/ was c/ have known / am d/have known / was 3/His knowledge ... since she got the habit of reading/ a/ develops b/has developed c/developed d/ have developed 4/ How long ... able to drive?- .... 1990 a/ have you been / since b/ could you/ during c/ are you / since d/ were you / for 5/My brother ... Dalat .... a week . a/ have visited/ for b/ has visited / since c/ visited / for d/ has visited / for