syncronize

LeannaChina

Because of a similarity to dance, synchronized swimming—exhibition swimming in which the movements of one or more swimmers synchronize to a musical accompaniment—is sometimes called water ballet, especially in theatrical situations.

1. of one or more swimmers synchronize to
   
   
2. of one swimmer or more is synchronized with
   
   
3. of one or more swimmers are synchronized with
   
   
4. by one swimmer or more is synchronized to
   
   
5. by one or more swimmers synchronize to
   
   此题选C 不选A 是不是因为be syncronized with 是固定短语呀？？？谢谢大牛们啦
   

gwang5

synchronize的主语是movements。关键在这里。

aeoluseros

对，synchronize sth. with sth.固定搭配。