Error Spotting - Tense & Preposition — Set 11
Questions 101–110 of 160
After they had finished their discussion, they have decided to implement the plan.
Correct Answer: B. have decided
The first clause uses past perfect correctly, but the second should continue in past tense. Should be 'they decided', not 'they have decided'. Maintain consistent tense in related clauses.
He is concerned about the upcoming changes and wants to know more details.
Correct Answer: D. No Error
The correct answer is 'No Error'. All prepositions and verb forms are correct. 'Concerned about' is the proper expression, and the sentence structure is grammatically sound throughout.
By the time we had reached home, it have already started raining heavily.
Correct Answer: B. have already started
Both clauses should use past perfect for parallel structure. Should be 'it had already started', not 'have already started'. Maintain consistent past tense forms.
She is very good at singing and participating in musical competitions regularly.
Correct Answer: D. No Error
The correct answer is 'No Error'. Both 'good at singing' and 'good at participating' are correct. The sentence properly uses gerunds after the preposition. The sentence is grammatically correct.
Either the students or the teacher have to submit the final project by Friday.
Correct Answer: C. have to submit
With 'either...or', the verb agrees with the nearest subject. 'Teacher' is singular, so the correct form is 'has to submit', not 'have to submit'.
Not only the author but also the editors have worked on this book carefully.
Correct Answer: C. have worked
With 'not only...but also', the verb agrees with the nearest subject. 'Editors' is plural, so 'have worked' is correct. The sentence is grammatically sound.
Both the parents and the child are happy with the school environment.
Correct Answer: D. No Error
The correct answer is 'No Error'. When 'both...and' connects subjects, plural verb is required. 'Are happy' is correct with multiple subjects. The sentence is grammatically correct.
She have already finished her work and is ready to leave now.
Correct Answer: A. have already
The singular subject 'She' requires 'has', not 'have'. The correct form is 'She has already finished'. Third person singular present perfect uses 'has + past participle'.
He is enthusiastic about learning new languages and cultures from around the world.
Correct Answer: D. No Error
The correct answer is 'No Error'. All prepositions are correctly used. 'Enthusiastic about' is the proper collocation, and 'from around the world' correctly describes the origin. The sentence is grammatically correct.
Before he had gone to sleep, he have completed all his homework assignments.
Correct Answer: B. have completed
The first clause correctly uses past perfect. The second clause should also use past perfect: 'he had completed', not 'he have completed'. Maintain consistent tenses.