Revise. The bridges were all down between Storm Lake and Altoona, thus making all the trains late.

417. Make a participle preceded by a conjunction agree with the noun to which it obviously belongs; or change the construction.

Ridiculous. Tuesday, when wearing my new hat, a rainstorm came up and ruined it.

Correct. Tuesday, when I was wearing my new hat, a rainstorm came up and ruined it.

Revise. While eating my supper last night, one of the calves got out and ran into the corn field.

418. A phrase beginning with the adjective due can refer only to a noun. ([See 372.])

Wrong. He was ill, due to overeating.

Right. His illness was due to overeating.

Revise. The train stopped, due to boiler trouble.