I

1. a

2. an

3. the

4. the

5. -

6. -

7. the

8. a

9. a

10. the

II

1. correct

2. correct

3. -> crops

4. correct

5. -> seeds

III. 

1. see

2. foreground

3. front

4. Behind

5. imagine

IV.

1. ...not fast enough to win the race

2. ...as tall as Dave

3. ...is not as heavy as the elephant

4. ...enough eggs to make the cake 

5. ...too tired to watch the movie starting at midnight

1. correct

2. correct

3. correct

4. -> stunt

5. correct

1. book

2. out

3. Pardon

4. Adults

5. change

1.

1.a

2.an

3.the

4.an

5.the

6.the

7.the

8.a

9.the

10.an

2.

1.2.correct

3.seed

4.correct

5.crop

3.

1.see

2.foreground

3.front

4.behind

5.imagine

S4.2.

1.I'm not fast enough to win the race

2.Janie is as tall as Dave

3.The rhino not as heavy as the elephant

4.I've got enough eggs to make a cake

5.I'm too tired to go to the movie at midnight

3.

1.2.correct

3.silently

4.fighting

5.correct

4.

1.pay

2.out

3.pardon

4.adults

5.change