Correct or incorrect
(If/he/not stop/smoking/he /get/sick)
If he doesn't stop smoking, he will get sick
If he______(not/take) his umbrella, he ______(get) wet
If he DOESN'T take his umbrella, he WILL GET wet
(If/you/not be/ helpful/, people/not like/ you)
If you aren't helpful, people won't like you.
They/not improve/if/they/not practice.
They will not(won't) improve if they don't practice