—Go and ask Mr Green for help.—But I don’t know ______.
Last month, three thousand students took part in the _______ sports meeting.
If our government _____pay attention to the safety of food, our health _____in danger.
--Where is Jack? --He’s left a ______saying that he will be back in a minute.
Do you know _______ the number of students in our school ______?
一Oh, so many people are standing outside the hall. _______will the film start?一__________seven o’clock.