问题补充：
you keep on practicing English, I’m sure you will be able to speak it fluently.
A. As soon as
B. As long as
C. Even if
D. As if
答案：
A. As soon as
(答案→)B. As long as
C. Even if
D. As if
解析：短语辨析. As soon as 一……就； As long as只要；Even if即使，虽然； As if 犹如，好似。句意：只要你坚持练习英语，我肯定你能够把它说的流利了。结合语境可知选B。
