англиский срочно срочно

1.We have created a webpage for our...........

We haven't created......

2. I have posted.......

I haven't posted......

3. She has looked........

she hasn't looked

4. My friend has changed.......

My friend hasn't changed.......

5.I have chated.....

I haven't chated...

6. we have downloaded.....

we haven't downloaded...

7. The internet has changed....

The internet hasn't changed.....

8. I have ordered a.....

I haven't ordered........