True/False : 1/T; 2/T; 3/F; 4/T; 5T; 6F; 7/F; 8/T; 9/F; 10/T; 11/T; 12/T; 13/F; 14/F; 15/T; 16/T; 17/F; 18/F; 19/T; 20/T.
Multiple choice: 1/c; 2/c; 3/a; 4/c; 5/d; 6/b; 7/b; 8/d; 9/b; 10/d; 11/c; 12/a; 13/a; 14/b; 15/b; 16/d; 17/a; 18/c; 19/c; 20/c.
Matching:1/d; 2/a; 3/a;4/a;5/b; 6/c; 7/a; 8/c? 9/a; 10/e;11/a;12/b; 13/b; 14/e; 15/c; 16/d; 17/b; 18/d; 19/c; 20/e.