Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them (a), (b) or (c) is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter. If none of the substitutions improves the sentence, indicate (d) as your response on the Answer Sheet.
I didn’t feel like going out yesterday, but on account of my son’s illness I had to go to the doctor.
- Ahave
- Bmight have
- Cought
- DNo improvement
Explanation
'I had to go to the doctor' correctly uses the past obligation form 'had to', matching the past-time setting of 'yesterday'. 'Have' would shift the obligation to the present, and 'might have' or 'ought' would change the meaning. The sentence is already correct, so the answer is (d), No improvement.