参考答案：S1. lie S2 associated S3. assign S4. spent S5. difficulty S6. afford S7 infant S8. she is entitled to a place of her own where she can be by herself, and keep her possessions S9. people will have their private thoughts that might never be shared with anyone S10. American’s houses, yards and even offices can seem open and inviting. Yet in the minds of Americans, there are boundaries that other people are simply not supposed to cross.