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

—What is the result of the survey?—15% of those surveyed worry that in the long term children _________ be more dependent on their parents, which does no good to them.

(2013·安徽高考)It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.

It is usually warm in my hometown in March, but it ____be rather cold sometimes.

—Must I go through the radiation (辐射) check when I come back from Japan at the airport these days?—Yes, you ______.