This is _____ and we must _____ on it.A hard work; work hard B a hard work; work hardC hard work; hard work D work hard; hard work
—Look! Do you know ______man under the tree? --Sorry .It’s too far to see ______clearly.
--Which do you prefer, tea or coffee? -- __________is OK.I don’t care.
Just before the Chinese class, I suddenly realized that I forgot _______ my Chinese text book.
We need to come up with a/an________and make a decision at once.
--- Do you know the boy________ is sitting next to Peter? --- Yes. He is Peter’s friend. They are celebrating his ________ birthday.