31, went
32, being taken
33, to come
34, smoking
35, was reading
36, talking
37, didn't write
38, had already gone
39, were watching
40, to see
41, go
42, He suggested doing some more mathematical puzzles
43, The customer made open the suitcase
44, Before Jack bought a new house, Jack had saved enough money
45, You are not old enough to join the army
46, He enjoys being admired by his friends