第二部分：英语知识运用
第一节：单项选择（共15题；每小题1分，满分15分）
21. At ________midnight , ________house next door to ours caught fire .
A. the ; a B. the ; the C. / ; the D. / ; a
22. Up to now , none of us ________ any letter from Kate .
A. received B. has received C. receive D. will receive
23. I hear Mary has gone to Hawaii . Do you know when _________ ?
A. did she leave B. has she left C. she left D. she has left
24. She’s never stayed at home alone for two days , ___________ ?
A. isn’t she B. is she C. has she D. hasn’t she
25. --------- Do you mind if I open the window ?
--------- _______________________ .
A. You’re welcome B. Excuse me C. No, please don’t D. I’m sorry , but I do
