问题

I’m sorry, I must go now. My mother told me to be at home 9 pm.
A:by
B:on
C:after
D:until;
B:on
C:after
D:until;
正确答案是:
同类题型
Could you do me a favour? — It depends on ______ it is.
Everyone was on time for the meeting—_________ Chris,who’s usually ten minutes late for everything
do you think of his speech at the court—Er, sorry, I ________ about something else
What _____ useful book! And _____ book is popular with students.