【正文】
, you should ask your teacher or your classmates _______help. A. for B . of C. in D. on ( )21 .The best way_______English is doing more practice. A. learn B. learning C. learns D. to learn ( ) the boy is! A. How B. What C. What a D. How a ( )23. She needs some paper to_______. A. write B. write in C. write with D. write on ( ) took them_______hour to go to Haikou by_______air. A. an。 of something of ( ) was _______ dark _______ he stayed at home. 。 you can _______ in a dictionary. it up it on it over it through ( ) they are poor。 faster most。 but ( ) discovered that listeni