Students show great interest in ______ Professor Edwards presents to them in his class.
At the wedding, he sang a song specially written for the ____.
----- Is that Mr.Smith over there? ----- No, it _____ be him --- I am sure he is much taller.
---Is it good to look up every new word when I come across it in reading?---No. You ______because you are likely to guess the meaning from the context.A. can’t B. mustn’t C. don’t have to C. ought not to
—Shall we go out for meal this evening?—Yes,that’s good idea.
I don't know if you noticed their behaviors or not, but we______.