Every student and every teacher was invited to the ceremony.
No error. When every precedes each of two singular nouns joined by and, the verb is normally singular.
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He is an honest and hardworking employee.
No error. Honest begins with a vowel sound because h is silent, so an is correct.
The applicant submitted both the original certificate and its photocopy.
No error. Both A and B correctly connects two parallel noun phrases.
The report contains fewer errors than the previous version.
No error. Errors is countable and plural, so fewer is correct.
His explanation was highly persuasion and convinced the committee.
An adjective is required after the linking verb was. Correct: His explanation was highly persuasive and convinced the committee.
She cannot solve the problem, and neither her friend can.
After neither, inversion is required in this agreement structure. Correct: and neither can her friend.
He is ready for the interview, and so does his brother.
The auxiliary must match the verb in the first clause. Since the first clause uses is, correct: and so is his brother.
The manager gave the responsibility to he and his assistant.
The preposition to requires an object pronoun. Correct: to him and his assistant.
The supervisor asked Meera and I to prepare the presentation.
The pronouns are objects of asked, so use me. Correct: The supervisor asked Meera and me to prepare the presentation.
Between you and I, the proposed schedule seems unrealistic.
A preposition requires an object pronoun. Correct: Between you and me, the proposed schedule seems unrealistic.
Whoever is responsible for the error must report to the supervisor.
No error. Whoever is the subject of is responsible, so the subject form is required.
There are two vacant rooms; one is on the ground floor and other is upstairs.
When referring to the second of two specific items, use the other. Correct: ...one is on the ground floor and the other is upstairs.
She cannot attend the meeting, and neither can attend I.
After neither + auxiliary, place the subject directly after the auxiliary. Correct: ...and neither can I.
I am interested in the course, and so does my brother.
The auxiliary must correspond to am. Correct: I am interested in the course, and so is my brother.
The programme includes lectures, practical exercises and to conduct mock tests.
The list should contain parallel noun phrases. Correct: The programme includes lectures, practical exercises and mock tests.
The poet and philosopher are delivering the keynote address.
With one article before two singular role nouns, the phrase can refer to one person holding both roles. In that intended reading, use is deliveri…
Every officer and every clerk have received the revised instructions.
Repeated every makes the construction distributive, requiring a singular verb. Correct: Every officer and every clerk has received the revised in…
I would rather you submitted the application before the deadline.
No error. Would rather + subject + past simple expresses a preference about another person's present or future action.
Not only did she qualify for the examination, but she also secured a top rank.
No error. Initial not only triggers inversion, and the sentence correctly uses but...also.
The results of the preliminary examination have been published on the official website.
No error. The plural subject results correctly takes have.
A pair of scissors was found near the examination desk.
No error. The head noun pair is singular and correctly takes was.
It was such a difficult problem that nobody could solve it immediately.
Such + a/an + adjective + singular countable noun + that is correctly formed.
It is essential that the documents are submitted before the deadline.
No error. Both that the documents are submitted and the more formal subjunctive that the documents be submitted are acceptable in standard Englis…
Her performance was considerably better than it had been in the previous round.
No error. The pronoun it clearly refers to her performance, and the comparison across two time periods is grammatical.