if __(train),most people can enjoy this simpie sport 怎么填
问题描述：
if __(train),most people can enjoy this simpie sport 怎么填
答
trained 被动式，相当于they are trained。
答
Trains
答
trained，相当于，If they are trained
答
if _trained_(train),most people can enjoy this simple sport
答
If 【trained】(train),most people can enjoy this simpie sport .
句意：
如果经过训练之后,大多数人会喜欢这项体育运动的.
关键：句子主语【大多数人】和【训练】这个动作,应该是被动关系,因此,用过去分词.