有一读者问：有这样一个句子：
(1)It was the best meal I have had at the restaurant last night.
我认为 I have had 应改为 I had，因为根据语法书，完成时只和表示一段时间的状语如 for...，since...等连用，而不能和表示时间的某一点的状语连用，不知对否？
你误会了。这里的 last night 与从句中的 have had 无关，而是主句中形式主语 it 所指代的真实主语。其实这句话亦可改写作：
(2)Last night was the best meal I have had at the restaurant.
