补全对话，根据对话语境和提供的首字母，填写正确单词，补全对话。

A: Good morning. Washington Press.

B:Good morning. May I 1. s_____to Mr. Kent,please?

A: 2. H_____the line,please.….I'm sorry Mr. Kent's occupied at present.I'll put

you 3. t_____ to his secretary.

B: Thank you.

C: HeIlo,Mr. Kent's secretary speaking. May I 4.h_____you?

B: Yes. This is Carol Sainsbury speaking. May I leave a 5. m_____for Mr.Kent?

C: Certainly,Miss Sainsbury. May I have your 6. n_____?

B: My number is 56321847.

C: 56321847,I'11 ask Mr. Kent to call you 7. b_____when he's free.

B: Thank you 8. v_____much.

C: You're welcome.

某化工厂生产的纯碱中含有少量NaCl杂质，其产品包装袋上标有：碳酸钠≥96%．为了证实该产品中碳酸钠的含量，某同学取12g该样品放入烧杯中，称得烧杯和样品总质量为132.0g再把100g稀盐酸平均分成4次加入烧杯中，每次充分反应后烧杯和剩余物总质量如下：（每次反应产生的CO₂气体都全部从烧杯中逸出）

②该产品中碳酸钠的质量分数是多少？该产品是否合格？（计算后回答，计算结果精确到0.1%）