не связывайтесь с БП. Ищите прямых заказчиков!

37 лет юноше, однако

Это нэээ!
39 (как минимум)
Nothing personal: я за точность))

Adopt a pen name. Marshak, for example.

you swing at least three times

I hope I won't have to hit a home run!

Ethnicity.
The stumbling block.

Выводы делайте сами.

Так что вполне себе оно подходящее. Другой вопрос, что часто оно воспринимается именно в первом своем значении - гражданство, но это не дает оснований вообще не употреблять это слово и в других своих значениях.

Нравилась мне всегда такая безапелляционность))) "Лонгман" уж известно, где издан.

http://www.answers.com/topic/nationality

"A" stumbling block - здесь совершенно правильно.

Anna-London, почему вы считаете, что надо только THE?
ну хоть корпуса проверьте, или словарь оксфордский.

2. Вы бы хоть глянули по ссылке, которую я привел. Там словарь LONGMAN Dictionary of Contemporary English. Какой товарищ Сталин?! Какие пометы?

1832 Examiner 488/1 It leaves the various existing nationalities of Germany unimpaired. 1856 G. W. Dasent Jest & Earnest (1873) I. 311 Welded by time and trouble into a distinct nationality. 1874 Stubbs Const. Hist. I. iv. 59 The Saxons in Germany were still a pure nationality. 1952 S. Selvon Brighter Sun v. 88 Whenever he saw a couple of different nationalities he used to hail out to them, and tell Stella that that was the way to live, especially in Trinidad. Ibid., He used to say that all this business about colour and nationality was balls. 1964 Gould & Kolb Dict. Social Sci. 244/1 In the Soviet Union, nationalities is more frequently applied to the diverse national-ethnic units who make up the membership of the Union. 1971 Times 17 Dec., ‘Nationality’, in the sense of citizenship of a certain state, must not be confused with ‘nationality’ as meaning membership of a certain nation in the sense of race.

OED

дотянулся проклятый Сталин с)

That wasn’t bad at all in the sense that you seem to have cleared the Runglish hurdle (a no mean feat in itself, by the way, as generally pathetic contributions posted on here daily by émigrés and trained linguists with decades of experience behind their belts only demonstrate too well), but, if the supplied evidence is any indication, you are still some way off from being a finished article and there’s still lots to learn – in my humble opinion, of course.. Below is my take on the first half of your test:

“I would describe Mr […] as a daring, enterprising and experienced executive well capable of setting goals for himself and achieving them, and also somebody who, while never short of an opinion of his own, is able to relate to the opinions of his opponents and, thanks to his gift of persuasion, to convince them to change those opinions.

Back in 2002 both myself and my colleagues at the mayor’s office had a negative view of bond issues as an option for funding the city’s debt. In the aftermath of the 1998 default on the first issue of municipal bonds we feared that investors would not want to buy any bonds from an issuer who had already defaulted once.

However, during the negotiations N, who represented the Bank, managed to convince us that the Bank’s team would be able to find a solution to the problem and possessed the required municipal loan experience. He gave us a presentation on a great number of loans that had been successfully arranged by the Bank and pointed out that, under the then current favourable conditions, the loan would help ease the pressure on the budget by reducing the cost of borrowing and stretching out the repayment schedule. As an added benefit, it would help the city become more transparent and create a fresh credit history.

After N estimated that a bond issue would help the city save about one per cent of its annual budget and noted that the savings would be available to support certain social spending priorities, the mayor’s office assigned to me the task of exploring a bond issue as a workable option.”

Хм, а я пару раз за границу пешком ходил (иногда по-пластунски, перебежками или камышом)....
А слово Ethnicity 99,99% аборигенов вообще не поймет, ежели тока они OEDа не начитались на голодный желудок. Ну, в самом деле, не все же отъезжающие отъезжают через Heathrow.

И чем вам неопределенный артикль не угодил?? (Сталин здесь точно не причем - он и словов-то таких не знал)

то, что называется "ржунимагу".

Во всем этом удручает какое-то тотальное неуважение, и уже
не только к Тамерлану, но и к словарям, корпусам, и простой логике.

Человеку, который пишет другому "Выводы делайте сами" (19:19), при этом впадая в детские ошибки, следует самому "делать выводы".
И долгие годы, проведенные в Лондоне, только усугубляют, так сказать....