In a low voice, in answer to Mr. Philips' questions, he denied having ordered anything from Parkson's in June. 
Silently, he denied having ordered the groceries from Parkson's.
mnli hypothesis: Silently, he denied having ordered the groceries from Parkson's. premise: In a low voice, in answer to Mr. Philips' questions, he denied having ordered anything from Parkson's in June. 