哪里错就改改吧

　　( C ) 21. They ________ an English evening next Sunday. A. are having B. are going to have C. will having D. is going to have ( A ) 22. ________ you ________ free next Sunday? A. Will; are B. Will; be C. Do; be D. Are; be ( B ) 23. He ________ there at ten tomorrow morning. A. will B. is C. will be D. be ( C ) 24. ________ your brother ________ a magazine from the library? A. Are; going to borrow B. Is; going to borrow C. Will; borrows D. Are; going to borrows ( B ) 25. - Shall I come again tomorrow afternoon? -________ （好的）. A. Yes, please B. Yes, you will. C. No, please. D. No, you won't. ( B ) 26. It ________ the year of the horse next year. A. is going to be B. is going to C. will be D. will is ( B ) 27. ________ open the window? A. Will you please B. Please will you C. You please D. Do you