Sentence

If he had known the truth, he would not trust them.

Question

Choose the best replacement for the underlined part.

Options

• (A) No improvement
• (B) will not trust
• (C) would not have trusted
• (D) did not trust

Answer

(C) would not have trusted

Solution

1. The if-clause uses the past perfect (had known), which refers to an unreal past situation.
2. The main clause must then use would have followed by a past participle.
3. The correct replacement is would not have trusted.