Определить- в предложении причастие или герундий? и почему?
1)russian сandles was invented in 1895, its inventor being the russian sсientist yabloсhkov.
2)we got the equipment tested.
3)the plant is found growing in the east indies.
4)they know of the density of the substanсe having been determined some years ago.
5)this method is affording good results is being widely used.
6) they are glad at our professor's having published a new textbook.
7) mary сurie's having disсovered radium enabled her to isolate other radioaсtive elements.
8) in addition to being very interesting this novel is very useful.
9)the resistanсe being very high, the сurrent in the сirсuit was very low.
10) they сonsider the experiments as being exast.

I think language learning has become more popular nowadays. There are a lot of languages people want to know. so not only English, but Japanese, Spanish, French, Russian and much more as well.

I hope, people have understood all of the advantages about knowing different languages

my opinion bases on necessary to communicate with other people, foreigners. so, if you know some other languages, besides your native one, you will easily connect with people. it helps you, when you travel, for example

nevertheless, some people think, it isn't necessary. I really can't understand them.

Where didn't Kate use to have a lunch?

Объяснение:

При формировании специального вопроса за основу берется общий вопрос к предложению.   Didn't Kate use to have a lunch at school?

Для того чтобы преобразовать его в специальный, необходимо добавить в начало предложения одно из вопросительных слов.

Вопросительные слова:

What? — Что?

Where? — Где?

When? — Когда?

Why? — Почему?

Who? — Кто?

Which? — Который?

Whose? — Чей?

Whom? — Кого?

How? — Как?

Выбираем вопросительное слово Where и получается Where didn't Kate use to have a lunch?  

at school убираем, потому что спрашиваем где?