题目

—        you please go to the movies with me?             — Sorry, I can’t. I        do my homework. A. Must, have to      B. Could, have to   C. should, had to 答案：B 寻寻觅觅，冷冷清清，________。（李清照《声声慢》） 蒹葭苍苍，白露为霜，所谓伊人，________。（《诗经·蒹葭》）