A He asked me where I was going.
B He asked me where was I going.
C He said to me where I am going.
D He asked me where I had been going.
Explanation: In indirect speech, the question word order changes to statement order and tense backshifts.
A She said that she will finish this by tomorrow.
B She said that she would finish that by the next day.
C She said she finished that by the next day.
D She told that she would finish this by tomorrow.
Explanation: In indirect speech, \'will\' changes to \'would\', \'this\' to \'that\', and \'tomorrow\' to \'the next day\'.
A He said that he has been working all day.
B He said that he had been working all day.
C He said that he had been working all that day.
D Both B and C are acceptable.
Explanation: Past perfect continuous (\'had been working\') is correct, and \'all day\' can become \'all that day\'.
A The teacher said that the earth revolves around the sun.
B The teacher said that the earth revolved around the sun.
C The teacher said that the earth had revolved around the sun.
D The teacher told that the earth revolves around the sun.
Explanation: Universal truths and scientific facts do not change tense in indirect speech.
A She said please help her.
B She requested to help her.
C She requested me to help her.
D She asked me that I should help her.
Explanation: Polite requests with \'please\' are converted using \'requested\' + object + to-infinitive.
A He suggested that they go for a walk.
B He suggested that they should go for a walk.
C He told them to go for a walk.
D Both A and B are acceptable.
Explanation: Suggestions with \'let us\' can be reported using \'suggested that\' + subjunctive or \'should\'.
A The Amazon produces all the world\'s oxygen.
B The Amazon is important but threatened by deforestation.
C Deforestation is increasing every year.
D The Amazon rainforest is the largest in the world.
Explanation: The passage highlights the Amazon\'s ecological importance and the ongoing threat of deforestation.
A AI has no drawbacks in healthcare.
B AI in healthcare has both benefits and challenges.
C Data privacy is not a concern.
D Drug discovery has not improved.
Explanation: The passage presents both the benefits of AI in healthcare and the challenges it poses.
A Coral turning white due to stress
B Coral becoming more colorful
C Coral growing faster
D Coral moving to deeper waters
Explanation: Coral bleaching is the process where coral turns white due to loss of symbiotic algae caused by stress like rising temperatures.
A Renewable energy is too expensive.
B Solar and wind energy are not available.
C Intermittency requires better storage solutions.
D Fossil fuels are more reliable.
Explanation: The passage identifies intermittency as the key challenge, requiring advanced battery storage.
A Students should stop reading entirely.
B Screen time is replacing beneficial reading habits.
C Academic performance has improved.
D Reading is not important for students.
Explanation: The author is concerned that increased screen time is reducing recreational reading, which benefits academic performance.
A She is adverse to changes.
B She is averse to changes.
C She is reverse to changes.
D She is diverse to changes.
Explanation: \'Averse to\' means having a strong dislike or opposition to something.
A Not only she finished first but also helped others.
B Not only did she finish first, but she also helped others.
C She not only finished first but also helped others.
D Both B and C are correct.
Explanation: Both structures correctly use \'not only...but also\' with parallel construction.
A He is concerned for the environment.
B He is concerned about the environment.
C He is concerned with the environment.
D Both B and C are acceptable.
Explanation: \'Concerned about\' and \'concerned with\' are both acceptable, though they have slightly different nuances.
A If I would have known, I would have come.
B Had I known, I would have come.
C If I had known, I would have come.
D Both B and C are correct.
Explanation: In formal English, \'had I known\' is an inversion of \'if I had known\', both are correct.
A He suggested that she goes early.
B He suggested that she go early.
C He suggested that she went early.
D He suggested that she will go early.
Explanation: After \'suggested\', the subjunctive mood requires the base form \'go\'.
A Unless you study hard, you will not pass.
B If you do not study hard, you will not pass.
C Without studying hard, you will not pass.
D All of the above are correct.
Explanation: All three sentences express the same conditional meaning using different conjunctions.
A She is different than her sister.
B She is different from her sister.
C She is different to her sister.
D Both B and C are acceptable.
Explanation: \'Different from\' is standard in formal English, but \'different to\' is also accepted in British English.
A I would rather you stayed at home.
B I would rather you stay at home.
C I would rather you would stay at home.
D I would rather you to stay at home.
Explanation: After \'would rather\' + that-clause, the past tense is used for present/future wishes about others.
A It is high time we left.
B It is high time we leave.
C It is high time we will leave.
D It is high time we are leaving.
Explanation: \'It is high time\' is followed by the past tense to express that something should have happened already.