... years old.
按语法规定,这个句子不太对,因为 since 前面的句子应该用现在完成时,但这个句子的谓语是 has to,它如何变为现在完成呢?难道是用 has had to? 像下面这样用?
He has had to move about in a wheel-chair since five years old.
比如:1.Wu Chi, scientist of chemical engineering, educator, academician of Chinese Academy of Sciences, participated in the establishment of petroleum refining major in Chinese universities in early years, cultivating a large number of scientific and technological talents for China's petroleum i...
...本语法书,都只是涉及了不定冠词,没有查到有用定冠词的例了。如:The party was quite a success. 这次聚会很成功。He seems quite a hopeful pupil. 他似乎是个相当有前途的学生。There was quite a respectable crowd at the match on Saturday. 星期六观看...