雅思写作语法错误（4）：双谓语　　下面雅思为大家整理了雅思写作语法错误（4）：双谓语，供考生们参考，以下是详细内容。
　　遥一句中有且仅有一个谓语动词 　　错例：It is unclear recycling can control pollution.
　　正解：It is unclear whether recycling can control pollution.
　　改错练习： 　　1.
It is advertising makes us buy something impulsively.
　　2.
There are two line charts show the unemployment rate fluctuates in China.
　　3.
The percentage of families have one car increased greatly.
　　以上就是雅思为大家整理的雅思写作语法错误（4）：双谓语，非常实用。
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较后，雅思预祝大家在雅思考试中取得好成绩!