.—I think I should wear a dress instead of this jeans.—It’s just a small informal party, so you don’t have to ___________.
He kept running on and on, telling me the same story ___.
The ___ to her back will put her out of action for several weeks.
Living in a polluted environment, people may ___ easily.
With the ___ of Mr Liu, I made great progress in speaking English.
—Carolina didn’t invite us to her birthday party. —___? I don’t care.