（1）一般过去时的一般疑问句的构成： Did+主语＋动词原形＋其它？ 如：
-Did you go to Beijing last week?
-Yes, we did. (No, we didn't.)
-Did you meet the businessman before?
-No, I didn't. (Yes, I did.)
-What did you do last night?
-I did my homework.
-Where did you go last week?
-I went to Shanghai with my parents.
___ she practiced her guitar yesterday? No, she ____.
A. Did, didn't
B. Did, isn't
C. Does, doesn't
D. Is, isn't