1. Lack of winter rains (a)/ have delayed the sowing of (b)/ wheat crop in this area. (c)/ No error (d)
Explanation (b) Use ‘has’ instead of ‘have’ as the subject ‘lack’ is singular in number.
2. The teacher let the boy off (a)/ with a warning though he (b)/ was convinced with his guilt. (c)/ No error (d)
Explanation (c) Use ‘of’ instead of ‘with’ as the verb ‘convinced’ always takes the preposition-‘of’ after it.
3. Our first trip was the most interesting one, (a)/ but our second one, (b)/ was even more interesting. (c)/ No error (d)
Explanation (a) Remove the. Article ‘the’is used before a superlative degree adjective only when comparison is made with all.If no comparison is made, the superlative degree adjective is used as positive degree adjective.
4. He has been going to the office (a)/ for a year now,(b)/and he even can’t understand its working. (c)/ No error (d)
Explanation (c) Remove ‘and’ and use ‘but‘ or ‘yet’. The clauses that show contrary results are joined by the adversative conjunctions not by the cumulative ones.
5. He boasts of having visited Europe many times (a)/ but he can neither speak English (b)/nor he can speak French. (c) No error (d).
Explanation (c) Remove ‘he can’. It is superﬂuous.
6. Whenever possible, one should avail the opportunity (a)/ that come one’s way (b)/ if one wants to achieve success in life. (c)/ No error (d)
Explanation (b) Replace ‘come’ by ‘comes’ because the subject opportunity’ is singular in number.
7. When my friends came to visit us (a)/ at the railway station (b)/ they left some of their luggages. (c)/ No error (d)
Explanatian (c) Replace ’luggages' by ‘items of luggage’.
8. As an officer (a)/ he not only was competent (b)/ but also honest. (c)/ No error (d)
Explanation (b) Use ‘was’ alter ‘he’. The clause would be ‘he was not only competent’.
9. If you will come tomorrow (a)/ we can go to the market (b)/ and do our own shopping together. (c) /No error (d)
Explanation (a) Remove ‘will'. In the conditional sentences, where both the acts are to take place in future the clause with ‘if’ is in present indefinite tense.
10. If we exercise regularly (a)/ we will be (b)/ more healthier. (c)/ No error (d)
Explanation (c) Remove ‘more’. ‘More’ is not used with an adjective in its comparative degree.