Установите последовательность пропущенных слов и выражений.
1_______
Dear Sirs,
2_______ to my previous letter of 3rd March about the overdue payment on your account. We are very concerned that the matter has not yet received your attention.
Clearly, this situation cannot be allowed to continue and we must urge you 3_______ action to settle your account.
4_______,
Tom Smith
March 28, 2009
I wish to draw your attention
to take immediate action
Yours faithfully