下列有关文学常识的表述，不正确的一项是（     ）

____ Robert ____ to take a bus to work.

根据下列句子的意思及所给汉语注释写出单词，每空一词。
____ Children must wash their clothes __________ (他们).
____ We can find the kind-hearted person __________ (到处).
____ There were two traffic __________ (事故) in the street last month.
____ His parents don't __________ (允许)him to go out alone at night.
____ Anna is a__________ (当心的) girl , she makes few mistakes in her homework.

①CO₂+H₂O═H₂CO₃

②NH₄HCO₃ $\frac{\underset{\_}{△}}{}$ H₂O+CO₂↑+NH₃↑

③2H₂S+O₂ $\frac{\underset{\_}{点燃}}{}$ 2S+2H₂O

④2NaOH+CuCl₂═Cu（OH）₂↓+2NaCl．

现将9.6g铜完全溶于200ml的硫酸中，试计算：

①标况下产生SO₂的体积为____；

②所生成的硫酸铜溶液的物质的量浓度（设反应后溶液的体积为200mL）为____．