1.
The data compiled by the organisation was very useful.

2.
I could achieve success through conscious efforts.

3.
He did not succeed in his endeavour.

4.
Our talks with the foreign delegation were really productive.

5.
It is difficult to authenticate these old manuscripts.

6.
He has saved money because his wife is frugal.

7.
Long illness has mascerated his body so much so that he is reduced to flesh and bones.

8.
Work that does not engage a person will never seem rewarding, no matter how lucrative it becomes.

9.
He was a very docile person and thus a favourite of his neighbours.

10.
Lack of occupation is not necessarily revealed by manifest idleness.