找出下列选项中划线部分读音不同的选项。 A. have B. fast C. thank
---_____ is Maria? ----She is twelve years old.
---____ is Peter? --- He_____ fine.
—Hi, Lucy. Your skirt is very nice. —____
---_____ are they? --- They are Maria and Jane.
中华人民共和国的英文缩写是______.