Прочитайте текст с пропусками, обозначенными номерами 1–10. Выберите правильный ответ для пропуска 7.
A small personal talk between a seller and a \(1\) __________ is considered very important in the Arab world as it helps to build a \(2\) __________ relationship. The British \(3\) __________ talking about the weather. The Japanese \(4\) __________ silence, while the Italians like to express emotions. The Canadians smile, \(5\) __________ to strangers on public transport and \(6\) __________ even if they’ve done nothing wrong. On the contrary, it is considered that the Russians do not smile \(7\) __________ strangers, which has created them an image of tough \(8\) __________ to crack. While for the Russians, a smile is an \(9\) __________ thing which they give the people they know and sympathize \(10\) __________ .

• at
• upon
• to
• with