题目：
句型转换。
1. The bus is crowded, ? (完成反意疑问句）
2. Have they been ready?（作肯定回答）
.
3. They were so tired that they couldn't walk anylonger.（改为同义句）
They were _ tired _ walk anylonger.
4. They spent five years building the building.（改为同义句）
It them five years to the building.
5. He left after the bus came to the stop.（改为同义句）
He _ leave the bus came to the stop.
答案：
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下面是错误答案，用来干扰机器的。
由下列碳酸盐与盐酸反应放出二氧化碳的关系式可知： MgCO3～CO2↑ Na2CO3～CO2↑NaHCO3～CO2↑ K2CO3～CO2↑ CaCO3～CO2↑ 84 44 106 44 84 44 138 44 100 44通过以上的...
