Who can explain me the questions number 1 and 2 ? ?

#1 is asking, "What do your parent remember about moving to the USA?"

In the context of moving to the USA, #2 is basically asking, "What did your parent experience when they moved to the USA? When did they move, where did they move to, what was happening before/during/after they moved, what did they see, hear, feel, and/or smell?"

Here are the answers to the whole practice.

1.a, 2.b, 3.b, 4.c, 5.a, 6.b, 7.b, 8.a

Explanation: have a great day/night. hope this helps.