根据句意及首字母提示完成单词
（1）Look! My English teacher is writing on the blackboard with c____.
（2）What will happen in the f____?
（3）Many people in Ya’an lost their l____ in the earthquake(地震).
（4）Danny has nothing to do now. He is f____.
（5）I have some q____ to ask you, Miss Black.
，所加氢氧化钠溶液的体积(mL)与产生沉淀的物质的量(mol)关系如下图所示。下列叙述正确的是（ ）
