English Grammar Exercise 7(Advance Grammar)

Each of the following sentences may contain an error in grammar, idiom or usage. If there is an error, it will appear in one of the underlined portions. Answers are given at the answer part. First try to answer by yourself, and then check it against the given answer. Answer explanation for each sentence is also given. If you go through this exercise, we can assure you that you will have a vast idea in English.

71. While my uncle and I were walking through the zoo my uncle was frightened by the roar of a lion. Answer
72. Mathematics is his favorite subject; he finds them very interesting. Answer
73. After the accident took place, neither the passengers nor the policeman were able to catch the bus driver. Answer
74. I only bought what was necessary; I was not whimsical. Answer
75. I believe that story about the tiger hunting because he himself had told us the story was true. Answer

Answers of Exercise 7(Advance Grammar)

71. The sentence is correct.
72. Here ‘mathematics’ is a subject and is singular. So it should be ‘it’ instead of ‘them’.
73. In a ‘neither-nor’ construction the verb agrees with the noun or pronoun which comes immediately before the verb. So here ‘the policeman was able’ is correct.
74. There is a wrong use of modifier in this sentence. ‘I bought only’ should be the correct answer.
75. The sentence is correct.
76. The sentence is correct.
77. Here verb ‘affect’ should be changed to noun ‘effect’ because it is the object of the clause. Never use a verb in subject or object position.
78. ‘I’ should be changed to ‘me’, because here the pronoun ‘me’ is the object of the preposition ‘among’.
79. The rule is (would like + complement + infinitive). So here it should be ‘to spend’.
80. The sentence is correct.