Tom didn’t give up studying ________________ he failed many times.

—Ipreferspeaking to listeningin English learning.—Oh, really! I think you should be good at ______ of them. 

 He didn’t tell me the truth _____ I met him in the street.

_______ the boy was walking down the street, the UFO landed.

— Does your aunt usually walk the dog in the park?— Yeah,                bad weather stops her.