1 a: hi, luke. i haven’t seen (not/see) you for ages. b: that’s because i (work) every day over the past few weeks.2 a: where (you/be) when the earthquake (happen)? b: i (drive) to work at the time.3 a: what (you/do) at ten o’clock yesterday morning? b: i (help) my dad plant flowers in the garden.4 a: (you/get) any plans for this summer? b: yes, we (travel) around south america.5 a: (you/want) to come to the cinema tonight? b: i’m afraid i (meet) diane.

1. She wanted stamps but they were not in the machine.
Explanation: The word "they" refers to the stamps, which is plural. Therefore, we need to use the plural form of the verb "were".

2. I know she told me all of the details.
Explanation: We need to use the pronoun "she" to refer to the person who told us the details. Additionally, we need to use the preposition "of" after the word "details" to show possession.

3. I hardly saw anyone I knew at the party, and I did not get to drink.
Explanation: The word "hardly" is used to emphasize that there were very few people at the party who were known to the speaker. Additionally, the word "anyone" is used as an indefinite pronoun to refer to people in general.

4. We did not think he would succeed, but he managed.
Explanation: Here, the word "he" is used as a pronoun to refer to a specific person. The verb "managed" is used to show that he was able to succeed despite our doubts.

5. Whoever believes what Jack says is a fool.
Explanation: The word "whoever" is used as an indefinite pronoun to refer to any person who believes what Jack says. The phrase "is a fool" is used to express the speaker's opinion about those people.

6. Haven't you got any friends in Rome? I feel sure you have mentioned them once.
Explanation: The word "any" is used with the noun "friends" to indicate that the speaker is asking about the presence of friends in Rome. Additionally, the word "them" is used to refer to the friends who have been previously mentioned.

7. Are there any letters for me?
Explanation: The word "any" is used to ask about the existence of letters for the speaker. It indicates that the speaker is open to receiving any letters, not just specific ones.

8. Do not let anyone in. I'm too busy to see anyone.
Explanation: The word "anyone" is used as an indefinite pronoun to refer to any person who wants to enter. The speaker is giving instructions not to allow anyone to come in because they are busy.

9. They cannot have any more strawberries. I want to make jam.
Explanation: The word "any" is used with the noun "strawberries" to indicate that the speaker does not want them to have additional strawberries. The verb "want" is used to express the speaker's desire to use the strawberries for making jam.

10. When would you like to come? Which day would suit me?
Explanation: The word "which" is used as an indefinite pronoun to ask about a specific day that would be suitable for the speaker. It indicates that the speaker is open to different options.

11. Where shall we sit? Anywhere will do.
Explanation: The word "anywhere" is used as an adverb to indicate that the speaker is open to sitting in any location. It shows a lack of preference for a specific seating area.

12. He's well known here, but he's a nobody in his own country.
Explanation: The phrase "a nobody" is used as an indefinite pronoun to refer to a person who is not important or famous. It indicates that the person is not recognized or valued in their own country.

С. Чандрашекар пошел в университет в возрасте…

Для ответа на этот вопрос, нам необходима немного информации о С. Чандрасекаре. Субраманьян Чандрашекар (англ. Subrahmanyan Chandrasekhar) был известным индийско-американским астрофизиком, который получил Нобелевскую премию по физике в 1983 году. Он родился 19 октября 1910 года в Лахоре, Британская Индия (современный Пакистан), а его семья была учеными.

Теперь перейдем к вопросу о том, когда он пошел в университет. Учитывая, что С. Чандрашекар родился в 1910 году, нам необходимо знать, в каком году он начал свое образование. Увы, в вопросе об этом не указано, но мы можем предположить, что он пошел в университет в типичном возрасте для студентов, то есть после окончания средней школы.

Обычно школьное образование в Индии состоит из 12 лет, начиная с класса 1 и заканчивая классом 12. Мы можем предположить, что С. Чандрашекар закончил среднюю школу в возрасте 17 или 18 лет.

Таким образом, если мы предположим, что С. Чандрашекар пошел в университет сразу после окончания средней школы, то он, скорее всего, пошел в университет в возрасте 17 или 18 лет. Однако, без дополнительной информации, мы не можем сказать точно, в каком возрасте он пошел в университет.

Важно отметить, что каждый человек может идти в университет в разном возрасте в зависимости от индивидуальных обстоятельств и образовательной системы в его стране. Ответ на этот вопрос может варьироваться в зависимости от конкретного случая.