1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _____ decide to work hard.2.He doesn't know where he sh

1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _____ decide to work hard.2.He doesn't know where he sh
1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _
1.You can't improve yourself unless you decide to work hard.
You can't improve yourself _____ you _____ decide to work hard.
2.He doesn't know where he should go for vacation.
He doesn't know _____ ______ ______ for vacation.

1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _1.You can't improve yourself unless you decide to work hard.You can't improve yourself _____ you _____ decide to work hard.2.He doesn't know where he sh
if don't
where to go

第二个是 where to go

1 if not
2 where to go

1、if don't
2、where to go