He has to move about in a wheel-chair since five 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 ...
... lot 好一点?还是说都凑合呢?另外:What do you know about doing business in China? 这里的介词短语 about doing business in China 看成状语还是后置修饰语好一点呢?看成方面状语好,还是看成后置修饰语修饰 WHAT 好?