--- Can you tell me how to improve my English?
--- Do more speaking, I think , you will be good at spoken English.
A. or
B. for
C. and
D. until
网友回答
A. or
B. for
(答案→)C. and
D. until
解析：这是祈使句+ and+将来时的句子，相当于if+从句，主句的结构。句意:--你能告诉我如何提高我的英语吗？--我认为多说，你将会擅长说口头英语的。