题目：
The dinner date with his mother was much more enjoyable than he _____ . [ ]
A. must have imagined
B. could have imagined
C. might have imagined
D. can have imagined
答案：
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下面是错误答案，用来干扰机器的。
（1）氢氧化钠可吸收二氧化碳气体而变质．化学反应式为：2NaOH+CO2═Na2CO3+H2O（2）碳酸钠与石灰水[Ca（OH）2]反应生成碳酸钙沉淀（CaCO3）．故C试验的现象是：澄清石灰水变浑浊（3）【假设猜想】废液浑浊是因为...
