Вставьте пропущенные артикли в предложение ниже. That's not easy to meet Liz.... girl is late.

The correct article to use in the sentence is 'a'. The sentence should read: 'That's not easy to meet Liz. a girl is late.' In English, we use the indefinite article 'a' before a singular noun referring to something for the first time, or when it is non-specific or just one of many in a category. In this case, 'a girl' is a non-specific person that is introduced for the first time. Thus the correct answer is the radio button with "a".