If he more time practicing speaking English before he able to speak it much better now.

问题补充：

If he more time practicing speaking English before, he able to speak it much better now.

A. spent; will be

B. had spent; would have been

C. spent; would have been

D. had spent; would be

答案：

A. spent; will be

B. had spent; would have been

C. spent; would have been

(答案→)D. had spent; would be

解析：句意：如果他以前花更多时间练习英语，他现在就会说的更好了。If条件句是和过去（before）相反，用过去完成式，主句和now（现在）相反，所以用would have done，所以选D。