Justin refused to clean the house for Brian because
OPTIONS:
- Justin refused to pay them for the last time that they cleaned.
- Brian refused to pay them for the last time that they cleaned.
Brian refused to pay them for the last time that they cleaned.

The pills didn't really help with my daily headaches, because the
OPTIONS:
- pills were not very strong.
- headaches were not very strong.
pills were not very strong.

We had to replace the column with a solid wall, as the
OPTIONS:
- column was useless against the weight of the roof.
- wall was useless against the weight of the roof.
column was useless against the weight of the roof.