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Fill in the gaps with by or with.

1. St Paul Cathedral was designed ... Sir Ch. Wren.
2. All the construction materials will be ordered ... the subcontractor.
3. The Corinthian order column is decorated ... acanthus leaves.
4. All structural considerations are performed ... special computer programs.
5. This approach has been supported ... most engineers.

1. St Paul Cathedral was designed by Sir Ch. Wren. 2. All the construction materials will be ordered by the subcontractor. 3. The Corinthian order column is decorated with acanthus leaves. 4. All structural considerations are performed with special computer programs. 5. This approach has been supported by most engineers.