1.  If not, what is the difference?

2.  If two word have any isn't same ?

3.  My answer wasn't right.

4.  This isn't easy.

5.  Though collecting money wasn't enough .

6.  This radio isn't a ordinary radio.

7.  she isn't good at talking.

8.  In this week the weather wasn't fine.

9.  it wasn't easy.

10.  My English feeling isn't good.