1. Those illegal goods were not sold openly but were available — the counter.

[রাজশাহী বিশ্ববিদ্যালয় ইউনিট: D সেট: 03 (বাণিজ্য) ২০১৪-২০১৫ : 2015]

1. At

1

2. by

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3. under

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4. from

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Answer
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