22, D. to travel
23, A. visiting - see
24, B. to ask
25, C. talk
30, B. answering
31, C. having
32, D. Passing
33, D. telling
34, B. shouting
35, A. spend
36, C. on listening to
38, B. playing
39, D. to meet
40, A. play
41, A. to go
42, A. playing
43, C. to eat
44, B. watching
45, D. to work
46, A. Collecting
47, B. travelling
50, doing

7, A. make
10, A. to smoke
11, D. kind of you to help
12, A. travelling
13, B. to go
14, A. mind
15, C. to raise
16, A. to wear
20, A. go
21, A. watching

22, D. to travel
23, A. visiting - see
24, B. to ask
25, C. talk
30, B. answering
31, C. having
32, D. Passing
33, D. telling
34, B. shouting
35, A. spend

36, C. on listening to
38, B. playing
39, D. to meet
40, A. play
41, A. to go
42, A. playing
43, C. to eat
44, B. watching
45, D. to work
46, A. Collecting
47, B. travelling
50, doing