—Who broke the window? — ______. A strong wind broke it last night.
—Do you know when ____? I miss him very much.—Don’t worry. I will tell you as soon as ____.
—Would you like to stay ____ days in Beijing?—No, thanks. I’m afraid I’ll be back tomorrow.
—Mr. Wang, I have trouble ____ the text.—Remember ____ it three times at least.
One of my teachers ____ an Englishman.
It is not polite ____ in public places.