I was doubtful of your success . (change to negative without altering the meaning)
A. I think you should not be successful.
B. Your success is not meant.
C. I was not sure of your success.
D. Your success is not doubtful.

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A : What time is it ? (08.30)B : It is …..
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Reporter: ‘The police are questioning the suspect this morning.’
A. The reporter said the police were questioning the suspect that morning.
B. The reporter said the police questioned the suspect that morning.
C. The reporter said the police had questioned the suspect that morning.