看图写句子。（5分）

小题1:be going to, baseball, tomorrow                                             

小题2:go cycling, twice a week                                                  

小题3:play the guitar, this time yesterday                                          

小题4:how, cute, panda                                                        

小题5:wash hands, before meals                                                 

（）由永久磁铁、磁钢、音圈、音膜、输出变压器等组成。

A.动圈式传声器

B.普通电容式传声器

C.压电陶瓷蜂鸣器

D.舌簧式扬声器