Ⅰ.单项填空
1.Be quiet! Do you hear someone ________ for something?
A.shouting B.shout
C.to shout D.shouted
2.Sitting in the chair beside the window, I watched the leaves ________ in the wind.
A.swinging B.hitting
C.striking D.knocking
3. I was greatly ________ at how he worked out the ________ problem in a creative way.
A.amazed;puzzled B.amazing; puzzling
C.amazed; puzzling D.amazing; puzzled