A:1
B:2
C:3
D:4
顺口溜,写出下面拼音对应的汉字,反复练读。
大海退潮见shā____滩,bèi ____壳留涌上岸,fēng____平浪静好出海,yú____船海上见。
Nowadays, cycling, along with jogging and swimming, _______ as one of the best all-round forms of exercise.