Directions: Each of the following items features one part of a sentence, followed by four alternatives. Complete the sentence by choosing the correct alternative. I will not pay for the goods

Step-by-step solution

The sentence requires a conditional conjunction to express that the payment depends on a specific action. The word 'unless' means 'except if' or 'if not', which perfectly fits the context, meaning 'I will not pay for the goods if he does not send me the bill again.' Therefore, the correct completion is 'unless he sends me the bill again.'