Tony, ______his father, ____ walking from home to school.
– What’s this? -- It is ___________.
--! Where is my pencil? --,I don’t know.
This is Jim. ______ twelve.
Boys and girls, I have ________ to tell you. A. important something B. something important C. anything important
--Must I come at four o’clock? -- Oh, no, you ______. A. can’t B. mustn’t C. needn’t.