Question

I will present first unless someone _____ the agenda.

a) will change
b) changes
c) would change
d) will have changed

Answer 1

The sentence should be 'I will present first unless someone changes the agenda.' The word 'changes' is the correct form to use following 'unless' for a condition related to a future event.

Step-by-step explanation:

The correct sentence is: I will present first unless someone changes the agenda. In this sentence, the correct form to use is the simple present tense 'changes' because it refers to a condition that if fulfilled, will make the main clause not happen. This conditional structure often requires the simple present tense after 'unless' when speaking about a future event that might occur.

Using 'will change' would be incorrect as it does not follow the typical rule of conditionals where the condition clause ('unless' clause) should be in the simple present tense. 'Would change' would also be wrong because it suggests a hypothetical or unreal situation, which is not the intended meaning here. 'Will have changed' is also incorrect because it suggests completed action before another event in the future, which is not the implication for an 'unless' clause.