单项选择题
A.students B.soldiers C.armies D.officers
A. A fast blow. B. A sudden beat. C. A big strike. D. A quick success.
A. He was not happy because people didn’t understand him. B. He was kind enough though very strange. C. He was a person who remained puzzling (令人迷惑不解的) after much thought. D. He was expert at the study of the woods.