单项选择题
—Is Mary in7 —No, she's out and won't be () till nine o'clock.
A.after B.later C.up D.back
A.It’s $14.99. B.It’s $40.99. C.It’s $14.19.
A.The woman studies at night. B.The woman goes to school during the day and works at night. C.The woman has to work to support herself.