— Will you please answer the door? It _______ be your sister.
—Sorry, I ________. I'm feeding the rabbit.
A.must；mustn’t B.will；can’t
C.may；can’t D.must；needn’t
－Jim, is physics difficult to learn in high school?
－Sure. No subject can be learned well hard work.
A.without B.from
C.through D.for
—The picture book doesn’t seem so popular. What about the dictionary?
—Oh, the dictionary _______ well.
A.sells B.sold
C.is sold D.was sold
We have decided to sell five things ________ we no longer use.
A.what B.where C.who D.that
—Look! Here comes Cindy! She is always full of .
—So she is. because she takes a lot of exercise every day.
A.knowledge B.courage
C.change D.energy
________ is quite easy for people to find any place in the world with the help of online maps.
A.That B.It C.This D.There
