TYPICAL ERROR If we do not study history, how can we learn from the mistakes of the past.
CORRECTION If we do not study history, how can we learn from the mistakes of the past?
EXPLANATION To indicate that something is meant to be a question, we insert a question mark at the end. Usually we leave out question marks simply because we forget them. This exercise will remind you of their use.
Insert question marks and full stops in the following sentences as necessary. Also insert single inverted commas where necessary. (Note - only two sentences require inverted commas.)