问题
选择题
I______go to bed ________my mother retumed home.[ ]
A. don't ; until
B. don't ; when
C. didn't ; until
D. didn't ; when
答案
答案:C
I______go to bed ________my mother retumed home.[ ]
A. don't ; until
B. don't ; when
C. didn't ; until
D. didn't ; when
答案:C