问题补充：
The flowers well if they .
A. won’t grow, don’t take good care of
B. won’t grow, are not taken good care of
C. don’t grow, are taken good care of
D. don’t grow, don’t take good care of
答案：
A. won’t grow, don’t take good care of
(答案→)B. won’t grow, are not taken good care of
C. don’t grow, are taken good care of
D. don’t grow, don’t take good care of
解析：此题if充当从属连词，引导条件状语从句，词义为“如果”，若主句中的谓语动词用一般将来时，则从句中的谓语动词通常用一般现在时表示将来。
