Mr. Wang would have continued to lead _____ poor life instead of changing his lifestyle if he hadn’t met Mr. Smith by _____ chance who was a businessman.
George said that he would come to school to see me the next day, but he ______.
You might wonder how it________to live without eating for so many days.
One learns a language by making mistakes and ______ them.
By the time you have finished this book, your meal ______ cold.
—It’s a long time________I saw you last. —Yes,and what a pity it is now that it will be a long time________we see each other again.