The flight to Toronto was __________ because of the heavy snow.
—Are the keys over there ______. —No. Go and ask Anna. They may belong to her.
I just have _____ cup of milk for _______breakfast.
–Could you tell me ______ yuanxiao in China? --Usually at the Lantern Festival.
Friends are those _____ always stand by your side when you need help.
I _______ be afraid to sleep alone in my room, but now I _______ sleeping there alone.