Complete using the comparative, superlative forms or comparison with as...as of the word in brackets

Complete using the comparative, superlative forms or comparison with as...as of the word in brackets.
1. I find the paintings of this artist ________________ than those by other painters. (impressive)
2. Jim doesn’t work so ________________ before as he is getting older and weaker. (hard)
3. Jane’s essay on contemporary arts is ________________ amongst the students in our class. (persuasive)
4. What I don’t expect is that this musical is by far ________________ I have ever seen. (good)
5. Of the two paintings displayed here, I think the abstract one is ________________. (beautiful)
6. As an art critic, Mr. Wilson often gives ________________ comments than any other collegues of his. (critical)
7. The way Jane delivered her speech didn’t seem as ________________ it should have been. (effective)
8. The water puppet show held in this museum was much ________________ than we expected. (successful)