1. In quick time she got acquainted with the new environment.
A. In enough time
B. In small time
C. On time only
D. in no time
E. No correction required
Answer - Option D
Explanation - The phrase 'In quick time' must be replaced with 'In no time' which means very quickly and is more appropirate under the context.
2. It was quite clear that the athlete can be able to improve upon his own record.
A. will be able to
B. should be able to
C. would be able to
D. be able
E. No correction required
Answer - Option C
Explanation - The underlined part 'can be able to' must be replaced with 'would be able to' to match the tense in the sentence.
Other similar examples:
Ex. He came at 8: 30 pm, freshened up and sat (not sit) by the window with his favorite novel.
Ex. It was obvious that he smoked (not smoke) in nobody's presence.
Ex. He said he would (not will) go to Lucknow on Friday.
3. He is a very lazy person and hate doing any kind of work.
A. hated doing
B. hate does
C. hates do
D. hates doing
E. No correction required
Answer - Option D
Explanation - The underlined part must be replaced with 'hates doing' as the verb 'hate' has to be in agreement with the the subject 'He' which is singular in number.
4. She opened the door as she know the person very well and had spent quite a few mornings with him.
A. as she knows
B. as she was knowing
C. as she knew
D. as she knowing
E. No correction required
Answer - Option C
Explanation - In this sentence, the underlined part must be replaced with 'as she knew' as the clause has to be in agreement with the tense which is simple past.
5. Usha could not thinking of traveling without her car and feared the crowd.
A. could not think
B. cannot thinking
C. cannot think
D. could not thinks
E. No correction required
Answer - Option A
Explanation - As In simple modal sentences, modal verbs are followed by the base form of a verb. The underlined part hence must be replaced with 'could not think' to make it a grammatically correct sentence.