问题补充:
—How do you learn English? —I learn English by .
A. listen to cassettes
B. speak it
C. listening to cassettes
D. ask the teacher
答案:
A. listen to cassettes
B. speak it
(答案→)C. listening to cassettes
D. ask the teacher
解析:句意:--你怎样学英语的?---我通过听磁带学的。by“通过”是介词,后面应该跟名词或动名词,在选项中只有C是动名词形式。所以本题选C。