On the small island,which is at the entrance to New York Harbor, .
---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______.
Here is the tower, ______ top you can have a good view of the whole city.
This house is that one.