Uze the required form:

1.If it____ , we will not go to the park.

 a) will rain

 b) rains

 c) will not rain

 d) does not rain

2. You will not pass the exam , _________ you work hard.

a) if

b) when

c) unless

d) as soon as

3. When we ______ ready , I will call you.

a) shall be

b) are