XI. 

1. interested/ interesting

2. relaxed/ relaxing

3. tiring/ tired

4. excited/ exciting

5. boring/ bored

XII.

1. the new restaurant looks good. However, it seems to have few customers

2. we planed to visit Petronas in the afternoon. However, we couldn't afford the fee.

3. despite of  Mary's sickness, ...

4. in spite of living in the same street, ...

5. in spite of my tiredness, I couldn't sleep

6. despite having little money, ...

7. although my foot was hurt, I managed to walk to the nearest village.

8.  I’ve been too busy to answer by email. Nevertheless, I'll do it soon

9. although we had planned to walk right round the lake, the heavy rain made this impossible

10. although I had an umbrella, I got very wet in the rain

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