a
a lot用法？
lot用法？
project is still causing him a lot of problems.这项工程现在仍然给他带来许多的麻烦。
2.I learned a lot from my father.我从父亲那里学到了许多东西。
the heat of the argument he said a lot of things he regretted later.他在激烈争吵时说了许多他后来感到后悔的话
it is not until that要用什么语态？
the truth是介词词组作状语。
It is not until…that直到……才
用法：It is not until…that暗含着强调句型，意为“直到……才”，通常引导时间状语从句。
例句：
It is not until evening thatthe farmers working in the fields returned home.直到傍晚，在田里劳作的农民才返回家中。
It是形式主语，is not until evening是系表型谓语（is not是系动词，until evening是表语），that the farmers working in the fields returned home是真正主语（working in the fields returned home是后置定语）。
例句：
It is not until they had finished the project that they returned home.直到完成了工程，他们才回家。
it is not until…that…是固定用法，意为“直到……才”，其中的that在任何情况下都不变。
例句：It is not until then that Mr Li realizes the importance of health.
直到那时，李先生才意识到了健康的重要性。
结构分析：
It是主语，is是系动词，not until引导状语从句，they是主语，had finished是谓语，the project是宾语，that引导表语从句，they是主语，returned是谓语，home是状语。