HARRY POTTER AND THE SORCERER'S STONE Chapter seven "The sorting Hat"
Imagine that you are Harry Potter. Write a page in the diary about your first days in Hogwarts.

I Am A Teenager. My name is . I’m a typical teenager. I study at the *th form of a secondary school and my favourite subjects are Biology and Chemistry. In the future I want to become a professional doctor. At the moment I’m working hard to pass the end of year exams. After that, I can choose either to continue studying at high school, or to enter a medical college. I prefer the latter, because that way I will be able to learn the basics of medicine earlier. Apart from the choice of future career, teenagers have many other problems, for example, first love. Last year I met a guy that I liked. I thought he was my first love, but he actually chose to date my best friend Inna. It was a real shock for me and I felt frustrated. As time passed, I stopped worrying about it, but it still feels awkward seeing them together. Another problem is the attitude of my parents towards my personal life. They want to know everything about me, my life, my friends, etc. From the one hand, I can understand their concern. After all I’m their only child. From the other hand, it’s depressing. It seems that I can’t even turn on my computer without their permission. They think that there is lots of harmful information online, so I need to be careful while surfing the net. I’m also not allowed to stay outside with my friends when it gets dark. I need to be home sharp at 10 pm. Perhaps they know better than me about life. Another typical teenage problem that I couldn’t avoid is large amount of homework. This year I‘ve studied almost without weekends to get good marks in main subjects. So, I think being a teenager is not easy, but it is an obligatory life stage for everyone.

I asked the director whether he would be able to do it.
Правильный ответ: D.

Перевод предл.: Я спросил директора/режиссёра, сможет ли он сделать это.

Это косвенная речь (indirect speech), тут согласование времён. Переведём сначала предложение в прямую речь (direct speech):
I asked the director: "Will you be able to do it?". Сказуемое asked у нас в времени — в Past Simple, поэтому в косвенной речи will становится would.
Whether — это как частичка "ли" в русском языке. Так или иначе, whether является синонимом if, поэтому можно whether заменять на if, если хотите.

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