Исправьте, пожалуйста, ошибки. Буду очень благодарна! Заранее спасибо!!

Martin: Hello. This is Martin Baum. The bathroom light in my room doesn't work. Could you have somebody come up and take a look at it please?
C: Oh, of course, Mr. Baum. What room number was that, please?
M. Room 615,
C. Okay, I'll have a man up there in a minute.
M. Fine. And another thing - I don't seem to have a room service menu. Is there one?
C. Yes , there is. We have 24-hour room service. I'm have a room service waiter you a menu up right away.
M. Thanks
C. If you need anything else, just let me know.
M. I will. Good night.
C. Good night.

Тема-герундий

about jazz? We are sure you have. Jazz is type of music and the only art form that was created in the United States.Jazz was created by black Americans.Many blacks were broght from Africa to America as slaves.Different native songs were sung by the black slaves and the music of their homeland was played in America. Jazz is a mixture of many different kinds of music.It is made up of the music of West Africa,the work songs of the slaves and religious music.The first jazz bands were formed at the end of the 19th century.They played in bars and clubs in many towns and cities of the South,especially New Orleans. Nowadays New Orleans is an international seaport, and people from all over the world come to New Orleans to hear jazz.Improvisation is an important part of jazz.This means that jazz music is made up or created on the spot.This is why a jazz song can sound a little different each time it is played. With time jazz became more and more popular.By the 1920s,jazz was popular all over the United States . By the 1940s, you could not only hear jazz in clubs and bars ,but in concert halls too.Today jazz is played all over the world.On every continent special festivals are held where jazz muscians from the United States,Asia,Africa,South America and Europe meet and share their music.In this way jazz continues to grow and change.Let's hope that no matter what happens in music jazz will always be performed and listened to.

За правильное решение даю еще 5 голосов ВК!

1. Yo can receive a lot of present for your birthday. ( Вы можете получить много подарков на свой день рождения)
2. Olya will become a translator when she grows because she had a gift for languages. (Оля станет переводчик, когда вырастет, потому что у нее был дар к языкам. )
3. I managed to enter to the doctor's office without waiting. (Мне удалось войти в кабинет врача без ожидания. )
4. I didn't understand your question. (Я не понимаю ваш вопрос.)
5. Police, ambulance, five protection uses particular means of transport. (Полиция, скорая помощь, пожарная охрана использует специфические средства транспорта)
6. Many people can not recover from some bad experiance of communication with other people from a long time. (Многие люди не могут оправиться от неудачного опыта общения с людьми долгое время)

Скажите, какой артикль здесь нужен:
THE/A historian cannot represent themselves (здесь во множественном, дабы избежать проблему сексизма в написании) without facts...

Буду очень благодарна за ответ!