[ Grammar ]
Butterflies body temperature affects their ability to fly; their temperature must be under 86 degrees Fahrenheit.
A. NO CHANGE
B. Butterflies’ body temperature
C. Butterfly’s body temperature’s
D. Butterfly body temperature’s

Random Topics:
Simple Past - Irregular VerbsThings in EnglishVerb to haveModals and Comparative SuperlativeSimple Present & Present ProgressiveTo Infinitive or Bare InfinitiveConnectivesVerb + Infinitive or GerundFew, a few, little, a littlePreposition and ConjunctionOther quiz:
Grammar › ViewTick the model verb.
‘ you most listen to the teacher.’
_
A. you
B. listen
C. most
D. teacher
Modals › View
The boy……climb the tree.
A. must
B. must not