Use a question mark to end an interrogativesentence.
Have past efforts to develop an AIDS vaccine been based onthe wrong approach?Use a question mark to change a declarative orimperative sentence into a question.
Their testing of the system wasexhaustive? [declarative changed tointerrogative]Start production on Friday? [imperative changed to interrogative]
When a directive or a command is phrased as a question, aquestion mark is optional.
Will you please send me a progress report by June10?Will you speak to the vendor about the networkingproblems.
Use a question mark to indicate uncertainty about data.
The first synthesis was accomplished by Claude Poux(1810?-1897).Do not use a question mark at the end of an indirect question.
James asked whether increasing the bandwidth of thenetwork's backbone would significantly increaseperformance.
Copyright ©2001 The McGraw-Hill Companies. Any use is subject to the Terms of Use and Privacy Policy. McGraw-Hill Higher Education is one of the many fine businesses of
The McGraw-Hill Companies, Inc..
