1. Choose the sentence that is grammatically correct in a mixed conditional context (past condition affecting a present result).
A) If I would have woken up earlier, I wouldn’t be late now.
B) If I had woken up earlier, I wouldn’t be late now.
C) If I woke up earlier, I wouldn’t have been late now.
D) If I had woken up earlier, I wouldn’t have been late now.
Пояснение: Это смешанный тип условного предложения, где условие относится к прошлому (не проснулся раньше), а результат — к настоящему (опаздываю сейчас). Правильная формула: Past Perfect (had woken) в части if и would + инфинитив (wouldn’t be) в главной части.

2. Choose the correct transformation of the direct speech into reported speech.
Direct: «I have never been to London before,» she said.
A) She said that she has never been to London before.
B) She said that she had never been to London before.
C) She said that she never was to London before.
D) She said that she would never be to London before.
Пояснение: При переводе прямой речи в косвенную происходит согласование времён. Настоящее совершенное время (have never been) в прошедшем времени меняется на Past Perfect (had never been).

3. Which sentence uses the correct form of the verb after the main verb?
A) He suggested to go to the cinema.
B) She avoided to speak to him directly.
C) They don’t mind waiting for a few more minutes.
D) I decided going home early.
Пояснение: После глагола mind всегда используется герундий (глагол с -ing). Глаголы suggest и avoid тоже требуют герундия, а decide — инфинитива (decide to go), поэтому только вариант C грамматически верен.

4. Choose the sentence that correctly expresses a logical conclusion about a past event with near certainty.
A) He must have forgotten about the meeting; his phone is switched off.
B) He should have forgotten about the meeting; his phone is switched off.
C) He can’t have forgotten about the meeting; his phone is switched off.
D) He might have forgotten about the meeting; his phone is switched off.
Пояснение: Конструкция must have + V3 выражает логическое умозаключение с высокой степенью уверенности («должно быть, забыл»). Should have — это сожаление или совет, might have — предположение с малой вероятностью, а can’t have — отрицание возможности.

5. In which sentence is the preposition used correctly after the adjective or verb?
A) She is very good in solving puzzles.
B) He apologised on arriving late.
C) I’m really looking forward to the holidays.
D) They accused him for stealing the money.
Пояснение: Фраза to look forward to — это устойчивое выражение, где to является предлогом, а не частью инфинитива. Правильные варианты других слов: good at, apologise for, accuse of.

6. In which sentence is the use of the relative pronoun and punctuation completely correct?
A) My brother, that lives in Canada, is a doctor.
B) The book which I borrowed it from you is fascinating.
C) The woman who you were talking to her is my aunt.
D) The city where I was born has changed a lot.
Пояснение: В варианте D правильно использовано относительное местоимение where (для места) и нет лишнего местоимения в придаточной части. В А нужно who для людей, в В и С лишние it и her.

7. Which sentence uses articles correctly?
A) The honesty is the best policy.
B) I saw a beautiful dress in the shop window; the dress was red.
C) I don’t like the cats; they are too independent.
D) She is the teacher and works at a local school.
Пояснение: В варианте B артикли употреблены верно: неопределённый (*a*) при первом упоминании и определённый (the) при повторном упоминании того же предмета. В А перед абстрактными существительными (honesty) артикль не нужен, в С — общее значение (cats) без the, в D — неясно, о каком именно учителе идёт речь.

8. Choose the sentence that uses the correct form of the adjective in the comparative or superlative degree.
A) This is the most bad day I have ever had.
B) Her result was more good than mine.
C) He is the tallest boy in our class.
D) This book is interestinger than that one.
Пояснение: У прилагательного tall правильные степени сравнения: tall — taller — the tallest. Остальные варианты содержат ошибки: bad — worse — the worst, good — better — the best, а у interesting степени образуются через more / the most.

9. In English, some words are often confused because they sound or look similar. Choose the sentence where the chosen word is used with the absolutely correct meaning.
A) The weather was very sympathetic, so we went for a walk.
B) He felt boring during the lesson and almost fell asleep.
C) I was very tired after the long journey, so I went straight to bed.
D) The film was very excited; I couldn’t take my eyes off the screen.
Пояснение: В варианте C слово tired (уставший) использовано правильно по смыслу. В А sympathetic (сочувствующий) не подходит для погоды (нужно pleasant), в В нужно bored (скучающий), а не boring (скучный), в D нужно exciting (захватывающий), а не excited (взволнованный).

10. Choose the sentence with correct subject-verb agreement.
A) The police is looking for the suspect.
B) Neither the teacher nor the students was ready for the test.
C) Ten dollars are a fair price for this book.
D) Each of the participants has received a certificate.
Пояснение: Местоимение each всегда требует глагола в единственном числе (has). В А police — множественное число (are), в В согласование идёт с ближайшим существительным (students → were), в С с суммой денег (ten dollars) используется единственное число (is).