.
=
1 
=
2 
= 3 
= 4
. =
1 =
2 = 3
= 4
Welcome
to this exercise
Instructions:Your
task is to provide the correct answer for each question.
For each item:
- click in the box
- type in your answer
At any time:
- click on check to see which of your answers are correct. Incorrect answers
are deleted.