Directions: Look at the underlined part of the given sentence. Below the sentence are three possible substitutions for the underlined part. Choose the one that is better than the underlined part, otherwise choose option (4), i.e. 'No improvement'.

I eat so that I might live.

In this context, the subordinate clause denotes purpose 'to live'. Thus, if the verb in the principal clause is in present tense or future tense, the verb in the subordinate clause must be in present tense. The modal verb 'may' expresses the possibility that the purpose of 'eating food' is fulfilled. Thus, this is the correct answer.