Read the sentence. I could tell by the mischievous gleam in their eyes and the sneaky looks they were exchanging that my little brother and sister had been planning to deceive me in some way. The most

Read the sentence.

I could tell by the mischievous gleam in their eyes and the sneaky looks they were exchanging that my little brother and sister had been planning to deceive me in some way.

The most precise replacement for the underlined word is “arranging preparing conniving organizing.”