-Can you tell me how to learn English well?-- Do more speaking I think you will

问题补充：

---- Can you tell me how to learn English well?

---- Do more speaking, I think, you will not be good at spoken English.

A. then

B. and

C. or

D. until

答案：

A. then

B. and

(答案→)C. or

D. until

解析：四个学校分别表示然后、并且、否则和直到，根据题意选C，我认为多说，否则你将不会擅长说英语。