Je n'arrive pas a la question 2 et 3 svp

J'ai la réponse que de la 2 eme question:
The time traveller: L.4 "pressing his hands above the apparatus", L.5: "it is my plan", L.11 "It took 2 years", L.21"the time traveller put forth his finger..." -> He wants to start the machine, he's self-confident. He is explanatory/ informative. He is proud/ cautions.

The psychologist: L.1 "well?", L.19 "seemed about to speak", L.20" change his mind" -> He is impressed, nervous and interested in what is going to happen.
The medical man: L.9 "The medical man got up (...)" -> He is interested, thinking, impressed, find the machine beautiful and curious.

The assembly: L.35 "Everyone was silent" -> He is expectant, impressed and amazed.
Voilà j'espère que c'est pas trop tard et que ça t'a aidé.