英语填空题中常见的语法结构包括名词、动词、形容词、副词、介词、连词等。以下是一些例子：
- 名词短语：The library is in the center.
- 动词短语：I go to the store every day.
- 形容词短语：The interesting book is on the table.
- 副词短语：She slowly walked to the park.
- 介词短语：I live in the heart of the city.
- 连词短语：If I am free, I will go to the party.
- 从句：I believe that you are tired.
- 非谓语动词：Having finished our work, we decided to leave.
- 情态动词：You should be more careful.
- 主动语态与被动语态：The task was done by the team.