Firstly, Shining morning face means the children's face after washing their face at morning. And secondly, creeping like snail means the children's who can not move and unwilling to go to school. Just like snail...
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“When thinking” is the right answer (the definition of retrospect is “a survey or review of a past course of events or period of time”. So “when thinking “ is most likely the right answer.
Answer:
Remember that figurative language are figures of speech that readers used to convey a message in a story. Some of these languages contain similes, metaphors, personifications, hyperbole, etc... In this case, you would use "metaphors and similes to convey the message of a theme in a story, that's because metaphors are things that compare each other without using like or as, and similes compare two things using the words like or as." For example, "always fly like a bird" is a simile while giving you the main idea to go for your dreams because you can't actually fly like a bird and you use figurative language to find out the main idea or theme.
Hope this helps.
