Có giải thích các bước giải

Question 21: It's about time Mrs Richards apologized to me______ me a gossip front of everybody. A. to have called B. from calling C. that she called D. for having The correct answer is D. for having. Explanation: The phrase "for having" is used to express the reason or cause for an action. In this case, Mrs Richards should apologize to the speaker because she has been gossiping about them. Question 22: She may claim _____ a PhD but nobody's ever actually seen the certificate. A. having B. to have C. for having D. if she has The correct answer is A. having. Explanation: The phrase "having" is used as a gerund in this sentence, indicating that she claims something (a PhD) as her possession or achievement. Question 23: Tammy responded______ that at least she'd never lied to her pare A. to say B. that she said C. by saying D. with havir The correct answer is C. by saying. Explanation: The phrase "by saying" is used to indicate how Tammy responded, showing the manner in which she expressed her statement. Question 24: The woman asked _____ get lunch at school. A. can the children B. if the children can C. whether the children could D. could the children The correct answer is B. if the children can. Explanation: The structure "if + subject + verb" is used in indirect questions to report someone's question or request. Question 25: They said they had got back _______ A. the following day B. the day after tomorrow C. the next day D. the previous day The correct answer is D.the previous day. Explanation: The phrase "the previous day" refers to a specific point in time before the current moment, indicating when they said they had returned. Question 26: The accused denied ______ in the vicinity of the murder scene. A. to have ever been B. have ever been C. having been ever D. ever hav The correct answer is C. having been ever. Explanation: The phrase "having been" is used to indicate a past action or state that occurred before another past event (denying being in the vicinity of the murder scene). Question 27: We complained______ the manager________the poor service we received at the restaurant. A. on - about B. at - for C. with - of D. to - abo The correct answer is D. to - about. Explanation: The verb "complain" is followed by the preposition "to" when indicating who the complaint is directed towards, and "about" when expressing the subject matter of the complaint. Question 28: Police are advising ______ away from the building. A. people to stay B. people staying C. people stay D. people The correct answer is A.people to stay. Explanation: The verb "advise" is followed by an infinitive verb form ("to + base form") to indicate what action should be taken. Question 29: The old man warned the young boys_______in the deep river. A. to swim B. not to swim C.don't swim D.against The correct answer is B.not to swim. Explanation: The verb "warn" is followed by "not + infinitive verb form" to indicate what action should be avoided or not done. Question 30: "You must give me your essays", Mrs.Vine said. Mrs.Vine said we_______give her our essays. The correct answer is must. Explanation: When reporting a direct speech using reported speech, modal verbs like "must" usually remain unchanged in their reporting clause