Out of the given options, choose the most appropriate one to fill in the blank.

The day after the explosion the death toll ______ to 90.

The correct answer is "had rise".

Key Points

•  The most appropriate option to fill in the blank is "had risen."

•  The past perfect tense is used to describe an action that took place before another action in the past.

• In this case, the explosion took place first, and the increase in the death toll took place later. Therefore, the past perfect tense "had risen" is the most appropriate choice to describe this sequence of events

• "had rise" is grammatically incorrect. The past participle of "rise" is "risen."
• "have rise" is grammatically incorrect. The past perfect tense requires the auxiliary verb "had," not "have."
• "has rise" is grammatically incorrect. The past perfect tense requires the auxiliary verb "had," not "has."
• Thus, the correct answer is Option 1.

Correct Sentence: The day after the explosion the death toll had risen to 90.