Exercise:

1a.

Exercise:

1b.

Exercise:

1c.

Exercise:

1d.

Exercise:

1e.

Exercise:

1f.

Exercise:

2a.

Exercise:

2b.

Exercise:

2c.

Exercise:

2d.

Exercise:

2e.

Exercise:

2f.

Exercise:

3a.

Exercise:

3b.

Exercise:

3c.

Exercise:

3d.

Exercise:

3e.

Exercise:

3f.

Exercise:

4a.

Exercise:

4b.

Exercise:

4c.

Exercise:

4d.

Exercise:

4e.

Exercise:

4f.

Exercise:

5a.

Exercise:

5b.

Exercise:

6a.

Exercise:

6b.

Exercise:

7a.

Exercise:

7b.

Exercise:

8a.

Exercise:

8b.

Exercise:

9a.

Exercise:

9b.

Exercise:

10a.

Exercise:

10b.

Exercise:

11a.

Exercise:

11b.

Exercise:

12a.

Exercise:

12b.

Exercise:

13a.

Exercise:

13b.

Exercise:

14a.

Exercise:

14b.