月末に近づいている。

The month is drawing to an end.

今月末に僕の家にきなさい。

Come to my house at the end of this month.

６月末に参加者を募ったら１週間弱で約５００席が予約でいっぱいになった。

When participants were sought at the end of June all, about 500, seats were reserved in under a week.

お支払日が先月末の請求書５６７８９について、まだお支払いを受けておりません。

With reference to the invoice No.56789 which was due last month, we have not yet received your remittance.

彼は博士論文を月末までに教授に提出しなければならない。

His doctoral thesis must be submitted to the professor by the end of the month.