— Catherine, I have cleaned the room for you . — Thanks. You_______. I could manage it myself.

—The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?     —_______ my students have a try?

A giant of a man was standing in the doorway. His face was almost completely hidden by a long and untidy hair and a wild beard, but you ______ make out his eyes, shining like black beetles under all the hair.

— Do you know where Miss Gao is? I couldn’t find her anywhere.— She ________ have gone far, for her coat is still here.

---Mr. Wu, can I have a look at the scores?---Well, you are a senior, so I_____ hardly remind you that the scores are not open to students.