---What color ____ they ? ----They’re red.
— Long time no see!— Yes, we haven’t seen each other _____ May 4, 2009.A. since B. in C. on
— Must I finish my homework now?— No, you _____.A. mustn’t B. needn’t C. can’t
— Excuse me, what’s this in English?— It’s _____ eraser.A. a B. an C. the
— Could you tell me now, Mary? — A magazine about science.
— Your classroom looks bright and tidy.— It after school every day.