please tell me.the following question sould how do.

please tell me.the following question sould how do.
use the correct form of the verb pick in place of the verbs in Italics.
question 1.the book has fallen on the floor.please get it for me.
question 2.i'll collect the parcel on my way to work.
question 3.i can't select the material that i want.
question 4.where did you learn those tricks.
(in these questions,i can do 1,3,4 but can't do question3,i don't understand that means.beg you istead me make this question.)
{1.question 1.the book has fallen on the floor.please get it for me.(question 1.the book has fallen on the floor.please pick it up for me)
question 3.i can't select the material that i want.(i can't pick out the material that i want)
question 4.where did you learn those tricks.(where did you pick up those tricks).}