How do you study English I study English_____grammar.

wice, the postman refused to deliverour letters unless we chained our dog

John has ______free time than Kate ,but Kitty has ______.

met my teacher and wanted to express howgrateful I was, words _________ me.

Encouraged by my science teacher, I set about my studies on developing my product, _____I hope I will succeed in applying for a patent（专利）.