Question

The writer was sad because the world had not became prosperous.

• A. Has not become
• B. Had not become
• C. Have not become
• D. No improvement needed

Hint:

After "had," the verb must be in its past participle form, not the simple past.

Answer 1

The Correct Option is B

Step 1: Recall the three forms of the verb: become, became, become. The past participle is identical to the base form. Step 2: The sentence needs the past perfect tense because it explains the reason behind an earlier state of sadness, so the auxiliary "had" is appropriate rather than "has" or "have." Step 3: Combining the correct auxiliary with the correct participle rules out "had not became," since "became" can never follow an auxiliary verb. Step 4: The fix is "had not become." \[\boxed{\text{Had not become}}\]