If he refuses to _____ my plan, I can probably find someone more cooperative.
—Haven’t you solved the problem yet?—Sorry, but I promise it in an hour.
________ the heavy snow came, the weather got colder and colder.
Jackson as well as his classmates going to learn Shakespeare’s works next week, of which some hard to understand.
In our opinion, teaching a foreign language is science.
—My mother doesn’ t know much about the computer.—________.