—We will go to the Wushan Square this afternoon, why not take a bus? —We ________ take a bus , it’s only one kilometer or more.
I mustn’t give up __________ English easily.
-- Whose book is this? -- It must .
We prefer the songs that_______ great lyrics.
You’ll fail the exam _____ you work hard.
We ___________to speak aloud in the public place.