Final answer:
The best method to revise sentences 5 and 6 that combines them using a coordinating conjunction is option (b), which uses 'but' to show contrast between Ellen's attempts at improvement and the speaker's playful intent.
Step-by-step explanation:
The best method to revise sentences 5 and 6 using a coordinating conjunction is by selecting option b. This option uses the conjunction 'but' to connect the two ideas, showing that even though Ellen has good intentions, the speaker has a different response in mind.
The sentence becomes: "Ellen is always trying to improve my mind and ethical standards, but I thought I would tease her a bit." This revision maintains the contrast between Ellen's efforts and the speaker's playful reaction.
The best method to revise sentences 5 and 6 using a coordinating conjunction is option b: Ellen is always trying to improve my mind and ethical standards, but I thought I would tease her a bit.
This option adds contrast between the two actions, showing that while Ellen is trying to improve the speaker's mind, the speaker decided to tease her instead.