Can someone help me with these, need explanations for all.

Excerpted from "the children's hour" by henry wadsworth longfellow a whisper, and then a silence: yet i know by their merry eyes they are plotting and planning together to take me by surprise. a sudden rush from the stairway, a sudden raid from the hall! by three doors left unguarded they enter my castle wall! look carefully at the lines above. a poem with this particular rhyme scheme is best read a. line by line. b. with long pauses. c. phrase by phrase. d. with a strong rhythm.

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.

In the following conversation, which group discussion technique does emily most clearly show?