a葡萄糖    b氨基酸    c甘油    d脂肪酸    e无机盐    f维生素  g水．

① Are these all ours? ____     A. It is Zhang Peng's.

② Whose is it? ____     B. Yes，it is.

③ Is this yours?____     C. Yes. they are.

    Sam's parents took her to the World Park last week. He saw Big Ben, the Tower Bridge, Disneyland in America, the CN Tower, Niagara Falls and the Sydney Opera House. His father told her Big Ben and the Tower Bridge are in London. Her mother told her Niagara Falls is in Canada and the Sydney Opera House is in Australia. He learnt about many things of the famous places around the world.