[讨论]02-08-25&02-08-31

farsuccess

25。 你可以复原这句话：A technological developmen has rarely had as great impact on society.

这里，是现在完成时，其中，had 是实义动词have的过去分词，而has是非实义动词，构成时态；

31。D: it is normally

unsuited-不适合的，adj.

如果动词的话，那么语态和时态方面就要变，unsuited is sure to be adj.