if he really likes you,he'll ask to see you again.
if you ask his friend,he will tell you what he's like.
if you spend all your time with him,you won't rehearse enough.
if another boy asks you out,you will have to say no.
if you really like him,you will miss him after the festival.
if he doesn't dance with you at the party,he will be sorry!
схема построения предложения в conditional 1:
main clause "if" clause
Pr.Simple Future simple
или "can,must,might..."
