Final answer:
The correct word to complete the sentence is 'led,' which is the past tense of the verb 'to lead.'
Step-by-step explanation:
The correct past tense form to fill in the sentence "I was forced to lead the team that Daniel ___ last year" is led. It's a common mistake to confuse the past tense of the verb to lead, which is led, with the noun lead (pronounced like 'red') which is a type of metal. For example, 'Nina led a group of tourists past the old lead mine' where 'led' is the past tense of 'to lead' and 'lead' refers to the metal.