giving customs....用来修饰前面整个句子,作用是前面 The systematic clearing of forests in the United States not only created farmland 使得giving consumers relatively inexpensive houses and furniture
Not only did the systematic clearing of forests in the United States create farmland (especially in the Northeast) and gaveconsumers relatively inexpensive houses and furniture,
I want to make sure what following twoverb words should use tense if"Not only did "is put the head of a sentence and following two verb ???????????????