Сomplete the sentences with the correct form(positive or negative) of the

Сomplete the sentences with the correct form(positive or negative) of the verds form the box. [study cook look eat put become go]
1. She will look completely dsfferent if she cuts her hair.
2. You won't pass the course if you ... ... hard.
3. If a goat gets into your garden, if ... ... all your plants.
4. If I ... ... out without her, she will get nasty.
5. If people don't protect whales, they ... ... extinct.
6. If I ... ... some eggs, gow many wiil you eat?
7. If you ... ... so mush sugar in your coffee, you'll gain weight!