Ответ:

1) I am happy to work at the factory

2) I am happy to be going to Paris

3) I am happy to have spent my holiday in the mountains

4) I am sorry not to understand this rule

5) I am happy to live in this town

6) She is sorry not to have been invited to the party

7) I am  glad to be listening to the symphony

8) He is happy to have played chess with the world champion

9) She is sorry not to have been working all these years

10) We are glad to be taught English

Объяснение: