A No sooner I had arrived than it started raining.
B No sooner had I arrived than it started raining.
C No sooner had I arrived when it started raining.
D No sooner did I arrived than it started raining.
Explanation: \'No sooner...than\' requires inversion and \'than\' (not \'when\').
A Scarcely I had sat down when the phone rang.
B Scarcely had I sat down when the phone rang.
C Scarcely had I sat down than the phone rang.
D Scarcely did I sat down when the phone rang.
Explanation: \'Scarcely...when\' requires inversion. \'Scarcely had I sat down\' is correct.
A He is such a good student that all teachers like him.
B He is so a good student that all teachers like him.
C He is such good student that all teachers like him.
D He is so good a student that all teachers like him.
Explanation: \'So + adjective + a/an + noun\' is the correct structure for \'so...that\' constructions.
A If I was you, I would apologize.
B If I were you, I would apologize.
C Were I you, I would apologize.
D Both B and C are correct.
Explanation: Both \'If I were you\' and the inverted \'Were I you\' are correct subjunctive forms.
A He insisted that she goes immediately.
B He insisted that she go immediately.
C He insisted that she should go immediately.
D Both B and C are correct.
Explanation: After \'insisted\', both subjunctive \'go\' and \'should go\' are acceptable.
A I would rather you don\'t smoke here.
B I would rather you didn\'t smoke here.
C I would rather you not smoke here.
D I would rather you won\'t smoke here.
Explanation: After \'would rather\' + that-clause about others, the past tense is used for present/future.
A It is time we left.
B It is time we leave.
C It is time we are leaving.
D It is time we will leave.
Explanation: \'It is time\' + that-clause uses the past tense to express something that should happen now.
A He acts as if he knew everything.
B He acts as if he knows everything.
C He acts like he knew everything.
D Both A and B are acceptable.
Explanation: \'As if\' with indicative (knows) is for probable situations, and with subjunctive (knew) for hypothetical.
A She is as intelligent if not more than her sister.
B She is as intelligent as, if not more than, her sister.
C She is as intelligent like, if not more than, her sister.
D She is as intelligent or more than her sister.
Explanation: The correct structure is \'as + adjective + as, if not more than\'.
A The project has been completed by tomorrow.
B The project will have been completed by tomorrow.
C The project had been completed by tomorrow.
D The project is completed by tomorrow.
Explanation: Future perfect passive uses \'will have been + past participle\' for actions completed before a future time.
A I am used to wake up early.
B I am used to waking up early.
C I am use to waking up early.
D I am used to woken up early.
Explanation: \'Am used to\' (accustomed to) requires a gerund. \'Use\' is not the correct form here.
A She is very unique in her approach.
B She is unique in her approach.
C She is more unique in her approach.
D She is most unique in her approach.
Explanation: \'Unique\' means one of a kind and cannot be modified by \'very\', \'more\', or \'most\'.
A The news are very shocking.
B The news is very shocking.
C The news were very shocking.
D A news is very shocking.
Explanation: \'News\' is uncountable and takes a singular verb. It cannot be preceded by \'a\'.
A He has bought a new car yesterday.
B He bought a new car yesterday.
C He has bought a new car since yesterday.
D He had bought a new car yesterday.
Explanation: With specific past time markers like \'yesterday\', simple past is used, not present perfect.
A She is looking forward to meet you.
B She is looking forward to meeting you.
C She is looking forward for meeting you.
D She is looking forward at meeting you.
Explanation: \'Looking forward to\' requires a gerund because \'to\' here is a preposition.
A He is capable to do the work.
B He is capable of doing the work.
C He is capable in doing the work.
D He is capable for doing the work.
Explanation: \'Capable of\' is the correct prepositional phrase followed by a gerund.
A She is prone to make mistakes.
B She is prone to making mistakes.
C She is prone at making mistakes.
D She is prone in making mistakes.
Explanation: \'Prone to\' is followed by a gerund when indicating a tendency.
A The teacher told the students not to be late.
B The teacher told to the students not to be late.
C The teacher told the students don\'t be late.
D The teacher told the students not being late.
Explanation: \'Told\' requires an indirect object without a preposition, followed by \'not to\' + infinitive.
A He denied to have done the work.
B He denied having done the work.
C He denied doing the work.
D Both B and C are correct.
Explanation: \'Deny\' is followed by a gerund or that-clause, never an infinitive.
A She suggested me to go home.
B She suggested that I go home.
C She suggested me going home.
D She suggested to go home.
Explanation: \'Suggest\' takes a that-clause with subjunctive or a gerund, not an object + infinitive.