If...not & Unless

If she doesn't come, we will go first. (Unless)

(a)  

If it doesn't rain hard, she will visit her parents. (Unless)

(a)  

If she doesn't do the test well, she will get bad marks. (Unless)

(a)  

You will enjoy the game more if you ________ the rules.

• learn
• will learn
• would learn
• learnt

They wouldn't have come over

• unless we invited them

• unless we'd invited them

• unless we invite them

If I ____ her, I would begin my driving lessons.

• were
• am
• are
• will be

If it _________, the boys _______ hockey. 

• rains, won't play
• rains, don't play
• will rain, won't play
• rained, won't play

If babies____ hungry, they____.

• will be .... will cry
• were.... cried
• are .... cry
• would be .... cried

You should not swim in the river ___ you are a good swimmer.

• unless

• if

You __________ improve your English unless you read a lot.

• can

• can't