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
—What about ______ that new bike? —I’m afraid I don’t have ______.
I don’t know if ______ to the party. I will let you know if ______.
—Whose workbook is this, Tony? —Look! Ann's name is on it! It ______ be hers.
—______ will you come back from Shanghai?—In one month.
—I went to Daming Lake yesterday. There were ______ people. —Yes. Everyone wants to go out on such a good day.