根据下列句子及所给单词的首字母，写出各单词的完全形式（每空限填一词）。

小题1:Of the twelve m____________ in the year, January comes first.

小题2:Jackie ,do remember to wash your hands b_____________ the meal!

小题3:Mary’s suitcase was too heavy. Mike c_____________ it upstairs for her.

小题4:I’d like to s__________ the last cake with you, you have half and I’ll have half .

小题5:Mobile phones cost less now, they are much c___________ than they once were.

小题6:Many people believe that it is a good h________ to get up early in the morning .

小题7:Shakespeare was b_______ on April 26, 1564 and died on the same day in 1616.

小题8:If something happens s__________ , it happens quickly and unexpectedly.

交换机工作在互连网络的（）。

A.物理层

B.数据链路层

C.网络层

D.传输层