1. if ) to the party,) fun.2. if the ) good, (go)for a picnic.3.if you ) a lot of sweets, ) fat.4. if ),) her to come back earlier. 5. if /study), pass) the exam.6. if ), (stay) at home.7. if ) your homework now,) to the park later.8. if ) the book, (lend) it to you.9. if (not / leave) now,) the bus.10.if we ) the bus,) late.

ответ:1. If we come to the party you will have fun.

2.If the weather is good we will go for the picnic.

4.If you eat a lot of sweets you will get fat.

5.If Mary doesn't study she won't pass the exam.

6.If it is rain we will stay at home.

7.If you do your homework now we will go to the park later.

8.If I buy the book I will lend it to you.

9.If we don't leave now we will miss the bus.

10.If we miss the bus we will be late.