根据句意,用所给单词的适当形式填空。

小题1:Daniel is writing a _______ (complain) letter to the newspaper.

小题2:The public transport system is _______ (special) designed to be comfortable.

小题3:Take exercise one hour a day, you’ll become ________(healthy)than before.

小题4:After working hard for many years, Jim became the CEO of a company in his _______(fifty).

小题5:Please help_________(you) to some chicken, Tom and Jim!

下列各句中，句意明确、没有歧义的一句是：

A．据外电报道，昨日新加坡一油轮起火爆炸。

B．小李见老王把他的书撕了，便揪住老王让他赔。

C．几个公司的领导对这个调整方案意见不一，争执不下。

D．工作组来我县调查的前三天，整个县城就已沸沸扬扬。