十七、There Be句型 

97. There are a bag and several books on the table.

There be 句式遵循谓语动词就近原则，a bag为单数，所以把are改为is。

98. There were several people stood at the back of the room.

There be句式的谓语动词为be动词，句中其他的动词应为非谓语动词。所以把stood改为standing.

 十八、修饰语在居中的位置不当 

99. We almost have written twenty compositions this term.

像almost这样的副词在句中放在助动词、be动词之后，实意动词之前。因此把almost放在have后面。

100. The girl has beautiful, silky hair who lives high in the mountains.

定语从句应紧跟先行词，所以改为：The girl, who lives high in the mountains, has beautiful, silky hair.