Spotting Errors

'It's' is a contraction of 'it is' or 'it has'. The sentence needs the possessive pronoun 'its' (without apostrophe) to show that the wildlife belongs to Alaska. 'Its wildlife's patterns' means the wildlife of Alaska and their patterns - the first 'its' must be possessive.

The relative pronoun 'what' is incorrectly used here. In English grammar, 'what' cannot function as a relative pronoun to refer to a preceding noun phrase. The correct forms are 'that require' or 'which require' when referring to 'steps'. Other options (a, b, c) use grammatically correct constructions.

The phrase 'realized that had' is missing the subject 'they' after 'that'. In reported speech and subordinate clauses, the subject must be explicitly stated. The correct construction is 'realized that they had' or simply 'realized they had'. The other options are grammatically sound.

The verb 'search' when followed by the object being sought requires the preposition 'for', not 'to'. We search 'for' something, not search 'to' something. The correct phrase is 'searching for alternative rubber sources'. Other options use correct prepositions.

The phrase 'repeated because' makes no logical or grammatical sense in this context. The sentence describes someone's stance on investing money, so the intended meaning is clearly about refusing or declining, not repeating. This is likely a scanning or OCR error. The other clauses are grammatically correct.

The phrase 'ahead years' is not a standard English expression. When referring to future time periods, we use 'coming years', 'years ahead', or 'forthcoming years'. 'Ahead' is an adverb and cannot directly modify 'years' as an adjective would. Other options use proper expressions.

The subject 'analyses' is plural, but the verb 'was' is singular. This creates a subject-verb agreement error. The correct verb form is 'were' to match the plural subject 'analyses'. The phrase 'that your analyses were correct' would be grammatically sound. Other options use correct subject-verb agreement.

The construction 'and so that' is redundant and incorrect. 'So that' already indicates purpose, and adding 'and' before it creates an unnecessary conjunction. The correct phrase is either 'so that we could spend more time' or just 'so we could spend more time'. 'And so that' has no proper place in standard English grammar.

This is the correct option as this part of the sentence has the error. The sentence is in subject – verb disagreement between the singular subject (the teacher) and plural verb (are sitting). Here, the verb should also be singular (is sitting) to make the sentence grammatically correct.

This is the correct option as this part of the sentence has the error. The sentence has tense disagreement as the sentence uses future continuous tense instead of future perfect continuous. Here, future perfect continuous tense should have been used to make the sentence correct as it is used to show an action in progress until an event happens in the future. The correct sentence would be, “We will have been waiting for more than one hour by the time the train arrives.

Reena is very much interested in and excited about the road trip to Ladakh.

This is the correct option as this part of the sentence has the error. Here, the subject (Jim) is a singular proper noun and with a singular proper noun, a singular verb (was) is to be used and not a plural verb (were).

This is the correct option as this part of the sentence has the error. This sentence lacks in pronoun agreement as ‘each student’ is singular and so, the pronoun must also be singular (his) and not plural (their). As a rule, the pronoun must agree with the number, gender and type of subject.

This is the correct option as this part of the sentence has the error. In this sentence, ‘either’ is the subject. As a grammatical rule, ‘either’ takes singular verb (is), and not plural verb (are) when acting as the subject of a sentence.

This is the correct option as the sentence has no error. The sentence uses the correct future perfect tense which is used to indicate an action that will be completed before another event takes place.