1 . I find it difficult to speak English well.

=> It's _________

2 . Understanding the handbook isn't difficult .

=> It's not ________

3 . They burned the plastic bottles and old plastic bags. It isn't good.

=> It isn't ________

4 . Understanding his theory is impossible .

=> It _______

5 . Answering these questions are not easy .

=> It_________

6 . It is really easy to learn English .

=> Learning ______

7 . His mother isn't well . I'm afraid .

=> I ______

8 . You didn't pass the English exam . Your parents are very disappointed .

=> Your parents are ______