问题描述：
1.We sat in the shade,s____from the sun
2.Young children often have difficulty e_____themselves
3.Mary turned away,b_____her face in the pillow
4.There are concerns that the refugees may not s_____ the winter
2.Young children often have difficulty e_____themselves
3.Mary turned away,b_____her face in the pillow
4.There are concerns that the refugees may not s_____ the winter
问题解答：
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