6、Grammarby+动词-ing形式,意为“通过做……的方式”,表示通过做某事而得到某种结果,可以用来回答how所引导的特殊疑问句。by:介词,意为“通过,靠”,此处表示方法、手段,后接名词或代词;接动词时,须用动名词形式。1. He goes to school ____ bike.A. by B. on C. in D. at2. — How do you study English so well?— By ____ lots of books.A. read B. look C. watching D. re