Короче, всё просто, когда говорящий задает вопрос о неизвестных ему лицах или объектах, он заменяет эти слова местоимениями who, whom, whose, what и which.
Вопросительные местоимения в английском языке применяются только в вопросах специального типа. Они ставятся в начале предложения перед глаголом.
Эти местоимения принадлежат к классу вопросительных слов, известных также, как wh-words, так как почти все они начинаются с букв wh.
* * *
1) Who is that old lady?
2) Who is here?
3) Excuse me, may I ask whom do you phone?
4) Of whom is your mother thinking?
5) What is in this box?
6) Which of you want to sing?
7) Who did you sent a present to?
I agree with the statement.
Trains have a lot of benefits and probably they are the best transport now. First of all they use modern technologies such as traction elecric motors. These motors are very fuel effective, so using trains we save the world around us.
Of course the transport should be fast. And modern trains are very fast. German trains travel at 160 km/h. Some trains can reach more than 300 km/h.
Trains are quite comfortabe and it is very interesting to travel by trains because you can see buildings, parks, roads and other beautiful landscapes.
I like trains