下列选项是四则“遗失启事”的主要内容，其中表达通顺、得体的一项是（ ）

It was Tom and his friends that________for the serious accidents.

______ good advice he gave us!

Michael hates to go to the hospital, because he is afraid of taking _____ medicine.

下列四个字母所含音素与字母b不同的是______。