Final answer:
Without further context, the question lacks sufficient information to be answered definitively. It could relate to an English class exercise on context clues or sentence completion, or a math class focused on sports statistics.
Step-by-step explanation:
The question 'Both the Sharks and the Senators lost 70____.' appears to be missing a key piece of information, likely a numerical value or a measure (likely games, given that 'Sharks' and 'Senators' could refer to sports teams). Without additional context, it is difficult to provide a definitive answer. In the English subject, this sentence could be an example to discuss context clues or a lesson on completing sentences properly. However, if this is related to a sports statistics unit in a mathematics class, it would involve calculating the ratio or percentage of games lost or analyzing a sports team's performance over a season.