Question 73

A signalling fault caused the delay. Which preposition completes the phrase the reason … the delay?

of
forCorrect answer
to
on

Explanation

Reason takes for when the following noun names the outcome being explained. Of may look like a general noun link, but it is not the standard collocation in this frame.

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Question 73: A signalling fault caused the delay. Which preposition… · English Prepositions · Questena