—Must we keep the window open all the time? A. No, you mustn’t B. No, you can’t. C. No, you don’t have to.
—It’s time _____ lunch.—OK. Let’s _____.
—_____ class are you having?—We are having an English class.
—Would you like to come and play soccer, Jim?—_____
. Miss Gao is always kind _____ her students. They love her very much.
—______ English lessons do you have on Friday?—Two.