对违约金的性质各国有不同规定，认为违约金具有惩罚性的国家是()

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On receipt of your instruction, we shall carry out this order ______.

To comply with your request, we are quoting you _____.

Our customers find your goods quite ______.

There is always a great demand for your goods if they are of good quality and competitive____ prices.

For this reason, we can ’t but .___your proposal.

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We shal____you as soon as the supply position improves.