the verbal phrase “stop drawing” (l.26) can be correctly replaced by stop to draw.

the direct speech version of the second set of directions (b) is I would have played some music if you had drawn whatever came into your heads.

the phrase “at the end” (l.13) is synonymous with in the end.

the word “filler” (l.13) is a noun formed from the verb to fill.

the phrase “They can be used as warmers” (l.12) is the passive voice of You can use them as warmers.

the word “them” (l.11) refers to “Circle games” (l.10).

the function word “as” (l.10) can be correctly replaced by like.

the verb “to gel” (l.8) means to disrupt.

the conjunct “therefore” (l.7) expresses concession.

the article “a”, in “a circle” (l.2), can be correctly replaced by the.