CAE word formation

Complete the following grid, paying particular

attention to whether the required word is grammatically

positive (+) or negative (-). 

1 efficient (adj +) efficiency (noun +)

2 respond (verb +) irresponsible (adj -)

3 benefit (noun +) (adj +) beneficial

4 complex (adj +) (noun +) complexity

5 intellect (noun +) (adj +) intellectual

6 conceive (verb +) (noun -) misconception

7 deceive (verb +) (adj +) deceitful

8 anxious (adj +) (noun +) anxiety

9 honesty (noun +) (adj-) dishonest

10 explain (verb +) (noun +) explanation

11 photograph (noun +) (adj +) photographic

12 attend (verb +) (adj-) inattentive

13 psychology (noun +) (adj +) psychological

14 invest (verb +) (noun +) investment

15 appear (verb +) (noun-) disappearance

picture source: http://www.traditionalgardengames.com/prod_details.php?cid=10

source: focus on advanced English (Cambridge). CAE.