He tries English well. And he practices English every day.A. to learn ; to speak B. learni

问题补充：

He tries English well. And he practices English every day.

A. to learn ; to speak

B. learning ; speaking

C. to learn ; speaking

D. learning ; to speak

答案：

A. to learn ; to speak

B. learning ; speaking

(答案→)C. to learn ; speaking

D. learning ; to speak

解析：句意：他尽力学好英语。并且他每天都练习说英语。try to do sth尽力做某事；try doing sth试着做某事。practice后跟v-ing形式作宾语，只跟v-ing形式作宾语的常见动词还有enjoy，mind，finish等。根据题意和动词用法选C。