Indicate: a. Sentence patterns; b. The semantic roles of underlined parts

Exercise 1. Indicate:
a. Sentence patterns
b. The semantic roles of underlined parts
1.      Secondary bacterial infection of the ulcers is common.
2.      The therapist interviewed her eldest son. 
3.      During the war, many people lost their homes.
4.       I promised the children a trip to the zoo.
5.      He bought his girlfriend a ring.
6.      John and Mary are swimming.
7.      He appointed John his assistant.
8.       I wrote my friend a letter.
9.     They are internal auditors.
10. The door closed.
11. I met his friend yesterday.
12. He irons his shirt.
13. This morning at seven I heard a sound.
14. The class became noisy.
15. He painted the wall white.
16. This shoe hurts my foot.
17.  The room smelled musty.
18. She gave me a push.
19. She made a fire.20. The final match will be held next week.